QGIS/design/docs/qgis_draft_design.lyx

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\layout Title

Quantum GIS Design Document
\layout Author

QGIS Core Design Team
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collapsed true

\layout Standard

Gary E Sherman, Mark Coletti, Denis Antipov
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\layout Standard
\pagebreak_top \pagebreak_bottom 

\begin_inset LatexCommand \tableofcontents{}

\end_inset 


\layout Section

Introduction
\layout Standard

This document describes the requirements and design for Quantum GIS (QGIS),
 a desktop GIS application for Linux and Unix.
 This document presents use cases, high-level class diagrams, and additional
 information about the design and implementation of QGIS.
 
\layout Standard

QGIS is hosted on SourceForge at http://qgis.sourceforge.net.
 The current release of QGIS is a viewer with a minimal feature set, including
 loading data, browsing, and identifying features.
\layout Standard

The design outlined in this document represents the next phase of QGIS developme
nt, which will move the application to a flexible and extensible platform
 for working with spatial data.
\layout Standard

Note that it's presumed that the reader is familiar with C++, object-oriented
 design, and UML.
\layout Section

Definitions
\layout Standard

The following is a list of definitions for terms used in this document.
 Some of these definitions are taken from the Association for Geographic
 Information and the University Of Edinburgh Department of Geography online
 dictionary of GIS terms available at http://www.geo.ed.ac.uk/agidict/welcome.html.
\layout Description

Attribute: A fact describing an entity in a relational data model, equivalent
 to the column in a relational table.
\layout Description

Feature: A set of points, lines or polygons in a spatial database that represent
 a real-world entity.
 The terms feature and object are often used synonymously.
\layout Description

GIS: Geographic Information System.
 A software system that provides the ability to view and analyze spatial
 data and its attributes.
\layout Description

Layer: A dataset that has a spatial context and can be drawn on a map canvas.
 Layers may have associated attributes.
 
\layout Description

Plugin: A compiled library that can be dynamically loaded into an application
 to provide new functionality.
\layout Description

Projection: A method of representing the earth's three-dimensional surface
 as a flat two-dimensional surface.
 This normally involves a mathematical model that transforms the locations
 of features on the earth's surface to locations on a two-dimensional surface.
 Because the earth is three-dimensional, some method must be used to depict
 the map in two dimensions.
 Therefore such representations distort some parameter of the earth's surface,
 be it distance, area, shape, or direction.
\layout Section

History
\layout Standard

The QGIS project was registered with SourceForge on June 15, 2002.
 Since that time, QGIS has developed into a minimally functional viewer
 with support for shapefiles
\begin_inset Foot
collapsed true

\layout Standard

ESRI format for file-based spatial data.
\end_inset 

 and vector data stored in a PostgreSQL
\begin_inset Foot
collapsed false

\layout Standard

PostgreSQL Relational Database - http://www.postgresql.org
\end_inset 

 database using the PostGIS
\begin_inset Foot
collapsed false

\layout Standard

PostGIS extension - http://postgis.refractions.net
\end_inset 

 extensions.\SpecialChar ~

\layout Standard

The development thus far has been useful in developing an understanding
 of the challenges involved in developing a more robust Open Source desktop
 GIS application.
 In March 2003, planning began to restructure QGIS in order to make it more
 extensible and to provide a means to add advanced functionality through
 the use of plugins.
\layout Standard

The current version of QGIS (0.0.9) is still usable as a simple GIS viewer
 for shapefiles and PostGIS layers.
 
\layout Section

Goals
\layout Standard

There are already other Open Source GIS projects available today.
 Many have asked what purpose QGIS will serve:
\layout Itemize

Will QGIS be a complete desktop GIS application? 
\layout Itemize

Will it compete with commercial products?
\layout Itemize

Why are you developing another GIS application?
\layout Standard

The answers to these questions are not clear-cut.
 A list of high-level goals for the QGIS project are enumerated below.
 The reader can perhaps use this information to answer these and other questions
 related to the project:
\layout Subsection

List of Goals
\layout Enumerate

Provide an easy to use desktop GIS application
\layout Enumerate

Provide an easy to install application for users with minimum system experience
\layout Enumerate

Support common data formats
\layout Enumerate

Provide the foundation for more advanced tools (plugins)
\layout Enumerate

Become a tool for spatial data collection
\layout Enumerate

Support data analysis and conversion
\layout Enumerate

Print/plot maps
\layout Enumerate

Integrate with Internet mapping technologies
\layout Standard

Section 
\begin_inset LatexCommand \ref{sec:Requirements}

\end_inset 

 provides details about the functional requirements.
\layout Section


\begin_inset LatexCommand \label{sec:Requirements}

\end_inset 

Requirements
\layout Standard

This section describes the functional requirements of Quantum GIS.
 These functional requirements drive the use cases discussed in Section
 
\begin_inset LatexCommand \ref{sec:Use-Cases}

\end_inset 

.
\layout Standard

QGIS will provide GIS functionality somewhere between a simple viewer and
 an industrial strength application.
 The ultimate nature of QGIS is only limited by the talent of those software
 engineers who will provide advanced capabilities through plugins.
\layout Standard

Some of the major design requirements include:
\layout Itemize

Extensible architecture using plugins
\layout Itemize

Internationalization
\layout Itemize

Integrated scripting language
\layout Itemize

Projection on-the-fly
\layout Itemize

Ability to render and browse data in many formats:
\begin_deeper 
\layout Itemize

Spatio-temporal data using a feature-centric model
\layout Itemize

Shapefiles
\layout Itemize

PostgreSQL / PostGIS layers
\layout Itemize

Raster
\end_deeper 
\layout Itemize

Support for OpenGIS implementation Specifications
\begin_deeper 
\layout Itemize

Geography Markup Language (GML)
\layout Itemize

Web Feature Service (WFS) 
\end_deeper 
\layout Subsection

User Interface
\layout Subsection

Standards
\layout Subsection

Data Formats
\layout Subsection

Platform Support
\layout Subsection

Toolkits
\layout Section


\begin_inset LatexCommand \label{sec:Use-Cases}

\end_inset 

Use Cases
\layout Standard

Use cases provide a means to identify and visualize the major goal oriented
 tasks the application should address.
 
\layout Subsection

Actors
\layout Standard

Actors are really persons (or physical entities) that use a system to acheive
 a specific goal (these goals are expressed as use cases).
 A number of actors could be defined for QGIS, however at this point the
 simple approach is taken.
 The actors are:
\layout Itemize

Casual GIS User
\layout Itemize

Professional GIS User
\layout Standard

These two actors are sufficient to frame the development and discussion
 of QGIS use cases.
\layout Subsection

Primary Use Cases
\layout Standard
\added_space_bottom smallskip 
The primary use cases for QGIS are listed below in no particular order of
 importance:
\layout Standard


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Load data
\layout Itemize

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Install plugin
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Find feature
\layout Itemize

Identify feature
\layout Itemize

Get help
\layout Itemize

Customize 
\layout Itemize

Save project
\layout Itemize

Restore project
\layout Itemize

Navigate map
\begin_deeper 
\layout Itemize

Pan
\layout Itemize

Zoom
\end_deeper 
\layout Itemize

Save image
\layout Itemize

Print
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\layout Itemize

Print image
\layout Itemize

Print metadata
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Print feature information
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\layout Itemize

Write script
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Run script
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Edit data
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Digitize
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Buffer feature
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Process data
\begin_deeper 
\layout Itemize

Union
\layout Itemize

Merge
\layout Itemize

Intersect
\end_deeper 
\layout Itemize

Convert data
\begin_deeper 
\layout Itemize

Change projection
\end_deeper 
\layout Itemize

Import data
\layout Itemize

Export data
\begin_deeper 
\layout Itemize

Export selected set
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\layout Itemize

Select features
\begin_deeper 
\layout Itemize

Select by attribute
\layout Itemize

Select spatially
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\layout Subsection

Case Descriptions
\layout Standard

In the sections that follow, the use cases are presented in no particular
 order.
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Load Data 
\layout Standard


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Use Case:
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Load Data
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Scope & Level:
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Primary task
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Preconditions:
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Failed End Condition:
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Primary Actor(s):
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\layout Standard
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Casual, Professional user
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Trigger:
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User wants to view data
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\layout Standard
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Description of Steps:
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\layout Enumerate

Decision is made to view a dataset
\layout Enumerate

Navigate to the location of the dataset
\layout Enumerate

Select dataset
\layout Enumerate

Dataset is displayed
\end_inset 
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\end_inset 


\layout Subsubsection

Browse Data
\layout Standard


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<lyxtabular version="3" rows="9" columns="2">
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Use Case:
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\begin_inset Text

\layout Standard
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Browse Data
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Goal in Context:
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Scope & Level:
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\begin_inset Text

\layout Standard
\added_space_top smallskip 
Primary task
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\layout Standard
\added_space_top smallskip 

\series bold 
Preconditions:
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\layout Standard
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\layout Standard
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Success End Condition:
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Ability to browse, look at the needed information about loaded data
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Failed End Condition:
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<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
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\layout Standard
\added_space_top smallskip 
Unable to browse and look at the loaded data information
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\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Primary Actor(s):
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<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Casual, Professional user
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\layout Standard
\added_space_top smallskip 

\series bold 
Trigger:
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<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
User wants to browse the features and other information about the data set
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\layout Standard
\added_space_top smallskip 

\series bold 
Description of Steps:
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\begin_inset Text

\layout Enumerate

User decides to view the features and other info
\layout Enumerate

User sees a list of available items in the data set
\layout Enumerate

User chooses the desired item in the browse set
\layout Enumerate

The details about the item are displayed
\end_inset 
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</lyxtabular>

\end_inset 


\newline 

\layout Subsubsection

Load Plugin
\layout Standard


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Use Case:
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\layout Standard
\added_space_top smallskip 
Load plugin
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\layout Standard
\added_space_top smallskip 

\series bold 
Goal in Context:
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Load a plugin into the 'core' system form the available list of installed
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\layout Standard
\added_space_top smallskip 

\series bold 
Scope & Level:
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<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Primary task
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\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Preconditions:
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\added_space_top smallskip 
Application is running
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\layout Standard
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\series bold 
Success End Condition:
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<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
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\layout Standard
\added_space_top smallskip 
Plugin loaded and the the new tools corresponding to the plugin appear available
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<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Failed End Condition:
\end_inset 
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<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Application is in the initial or the previous plugin state 
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<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Primary Actor(s):
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Casual, Professional user
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Trigger:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
User wants to view data with a different plugin, or wants to add certain
 functionality to the existing state
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</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Description of Steps:
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<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
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User decides to load a new plugin
\layout Enumerate

User inspects all the installed plugins
\layout Enumerate

User selects a plugin
\layout Enumerate

A plugin is loaded and new functionality added
\end_inset 
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</lyxtabular>

\end_inset 


\newline 

\layout Subsubsection

Find Feature
\layout Standard


\begin_inset  Tabular
<lyxtabular version="3" rows="9" columns="2">
<features>
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\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Use Case:
\end_inset 
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<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Find feature
\end_inset 
</cell>
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<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Goal in Context:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Find a feature on a map or loaded data set
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<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Scope & Level:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Primary task
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Preconditions:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Application is running and a data set loaded
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Success End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
A feature that corresponds to the search condition found if such exists
 and not found if not exists
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Failed End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
A feature that exists and corresponds to the search conditions not found
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Primary Actor(s):
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Casual, Professional user
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Trigger:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
User wants to find a feature on a map or data set
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Description of Steps:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Enumerate

User decides to find a feature in a loaded data set
\layout Enumerate

User submits a search query that would identify somehow the feature
\layout Enumerate

A feature is displayed if found or a message notifying that it was not found
\end_inset 
</cell>
</row>
</lyxtabular>

\end_inset 


\newline 

\layout Subsubsection

Identify Feature
\layout Standard


\begin_inset  Tabular
<lyxtabular version="3" rows="9" columns="2">
<features>
<column alignment="right" valignment="top" width="2in">
<column alignment="block" valignment="top" width="3in">
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Use Case:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Identify Feature
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Goal in Context:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
After selecting a feature on a map, display its attributes
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Scope & Level:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Primary task
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Preconditions:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Application is running and a data set loaded
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Success End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Attributes of a feature displayed
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Failed End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Nothing displayed when a feature selected
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Primary Actor(s):
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Casual, Professional user
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Trigger:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
User wants to view attributes of a feature
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Description of Steps:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Enumerate

User decides to view attributes of a particular feature
\layout Enumerate

User chooses a feature on the map
\layout Enumerate

User selects a feature
\layout Enumerate

Attributes are displayed
\end_inset 
</cell>
</row>
</lyxtabular>

\end_inset 


\newline 

\layout Subsubsection

Get Help
\layout Standard


\begin_inset  Tabular
<lyxtabular version="3" rows="9" columns="2">
<features>
<column alignment="right" valignment="top" width="2in">
<column alignment="block" valignment="top" width="3in">
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Use Case:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Get Help
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Goal in Context:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Load help system
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Scope & Level:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Primary task
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Preconditions:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Application is running
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Success End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Help system loaded and the menu of help topics displayed
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Failed End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Application is in 'helpless' state 
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Primary Actor(s):
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Casual, Professional user
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Trigger:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
User needs help with an application or one of its plugins
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Description of Steps:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Enumerate

User finds out that they don't know as much about QGIS as they thought they
 did
\layout Enumerate

User launches help system
\layout Enumerate

User selects one of the topics/subtopics of interest
\layout Enumerate

User is enlightened about rich QGIS functionality and how to use it
\end_inset 
</cell>
</row>
</lyxtabular>

\end_inset 


\newline 

\layout Subsubsection

Customize
\layout Standard


\begin_inset  Tabular
<lyxtabular version="3" rows="9" columns="2">
<features>
<column alignment="right" valignment="top" width="2in">
<column alignment="block" valignment="top" width="3in">
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Use Case:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Customize
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Goal in Context:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Customize application user interface
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Scope & Level:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Primary task
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Preconditions:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Application is running a plugin that is being customized loaded
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Success End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Interface changes according to customization
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Failed End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
No changes occus after customization
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Primary Actor(s):
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Casual, Professional user
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Trigger:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
User wants to change the interface
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Description of Steps:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Enumerate

User decides to change the interface
\layout Enumerate

User launches the customization system
\layout Enumerate

User adjusts the interface according to the customizationsystem
\layout Enumerate

Changes in the interface take effect
\end_inset 
</cell>
</row>
</lyxtabular>

\end_inset 


\newline 

\layout Subsubsection

Save Project
\layout Standard


\begin_inset  Tabular
<lyxtabular version="3" rows="9" columns="2">
<features>
<column alignment="right" valignment="top" width="2in">
<column alignment="block" valignment="top" width="3in">
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Use Case:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Save Project
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Goal in Context:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Save entire project in a specified file format
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Scope & Level:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Primary task
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Preconditions:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Application is running, data set(s) loaded
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Success End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Current project saved in a file
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Failed End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Current project not saved in a file 
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Primary Actor(s):
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Casual, Professional user
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Trigger:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
User wants to save the layout of map, layers, etc.
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Description of Steps:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Enumerate

User decides to save the current project
\layout Enumerate

User chooses location and filename for the project
\layout Enumerate

The project saved in a file
\end_inset 
</cell>
</row>
</lyxtabular>

\end_inset 


\newline 

\layout Subsubsection

Restore Project
\layout Standard


\begin_inset  Tabular
<lyxtabular version="3" rows="9" columns="2">
<features>
<column alignment="right" valignment="top" width="2in">
<column alignment="block" valignment="top" width="3in">
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Use Case:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Restore Project
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Goal in Context:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Load a project from a previously saved file
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Scope & Level:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Primary task
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Preconditions:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Application is running
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Success End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Project loaded and all the data sets restored in the saved condition
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Failed End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Project is not restored
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Primary Actor(s):
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Casual, Professional user
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Trigger:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
User wants to restore the project that was saved
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Description of Steps:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Enumerate

User decides to restore a project
\layout Enumerate

User navigates to the location of the project
\layout Enumerate

User selects a project
\layout Enumerate

Project is restored
\end_inset 
</cell>
</row>
</lyxtabular>

\end_inset 


\newline 

\layout Subsubsection

Navigate
\layout Standard


\begin_inset  Tabular
<lyxtabular version="3" rows="9" columns="2">
<features>
<column alignment="right" valignment="top" width="2in">
<column alignment="block" valignment="top" width="3in">
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Use Case:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Navigate
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Goal in Context:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Pan and Zoom on a data set
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Scope & Level:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Primary task
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Preconditions:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Application is running, data set loaded and rendered
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Success End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Data set is zoomed or panned
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Failed End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
No changes to the view of a data set
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Primary Actor(s):
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Casual, Professional user
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Trigger:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
User wants to zoom or pan on a data set
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Description of Steps:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Enumerate

User decides to zoom or pan on a data set
\layout Enumerate

User uses zoom or pan
\layout Enumerate

The view is zoomed or panned
\end_inset 
</cell>
</row>
</lyxtabular>

\end_inset 


\newline 

\layout Subsubsection

Save Image
\layout Standard


\begin_inset  Tabular
<lyxtabular version="3" rows="9" columns="2">
<features>
<column alignment="right" valignment="top" width="2in">
<column alignment="block" valignment="top" width="3in">
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Use Case:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Save Image
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Goal in Context:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Save the current view of the data set in an image file
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Scope & Level:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Primary task
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Preconditions:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Application is running, data set loaded and rendered
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Success End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
An image displaying the current view of a data set saved
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Failed End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
No image saved
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Primary Actor(s):
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Casual, Professional user
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Trigger:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
User wants to save the current view of a data set as an image
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Description of Steps:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Enumerate

User decides to save an image
\layout Enumerate

User chooses the location and filename of the image
\layout Enumerate

The image saved 
\end_inset 
</cell>
</row>
</lyxtabular>

\end_inset 


\newline 

\layout Subsubsection

Print
\layout Standard


\begin_inset  Tabular
<lyxtabular version="3" rows="9" columns="2">
<features>
<column alignment="right" valignment="top" width="2in">
<column alignment="block" valignment="top" width="3in">
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Use Case:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Print
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Goal in Context:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Output on a printer the current data set as an image, metadata, and its
 set of features
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Scope & Level:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Primary task
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Preconditions:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Application is running, a dataset loaded and rendered
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Success End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
The different types of data (image, metadata, feature set) being output
 on a printer
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Failed End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
No attempt to output data on a printer
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Primary Actor(s):
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Casual, Professional user
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Trigger:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
User wants to output data on a printer
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Description of Steps:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Enumerate

User decides to output data set on a printer
\layout Enumerate

User chooses the type of data output (image, metadata, feature set)
\layout Enumerate

User selects a printer
\layout Enumerate

Dataset is output on a printer in a specified format
\end_inset 
</cell>
</row>
</lyxtabular>

\end_inset 


\newline 

\layout Subsubsection

Write Script 
\layout Standard


\begin_inset  Tabular
<lyxtabular version="3" rows="9" columns="2">
<features>
<column alignment="right" valignment="top" width="2in">
<column alignment="block" valignment="top" width="3in">
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Use Case:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Write Script
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Goal in Context:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Write a script to perform some QGIS function in an automated manner
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Scope & Level:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Primary task
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Preconditions:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Application is running
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Success End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Script is completed and tested
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Failed End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Script is not saved and application is in pre-script state
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Primary Actor(s):
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Professional user
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Trigger:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
User needs a script to perform a repititve or specialized operation
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Description of Steps:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Enumerate

Identify need for the script
\layout Enumerate

Open the script editor
\layout Enumerate

Write and test script in iterative fashion
\layout Enumerate

Save script for future use
\end_inset 
</cell>
</row>
</lyxtabular>

\end_inset 


\newline 

\layout Subsubsection

Run Script 
\layout Standard


\begin_inset  Tabular
<lyxtabular version="3" rows="9" columns="2">
<features>
<column alignment="right" valignment="top" width="2in">
<column alignment="block" valignment="top" width="3in">
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Use Case:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Run Script
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Goal in Context:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Execute a stored script to perform a task
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Scope & Level:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Primary task
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Preconditions:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Application is running with appropriate or required data loaded
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Success End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Script performs desired function
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Failed End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Script exits gracefully 
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Primary Actor(s):
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Casual, Professional user
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Trigger:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
User needs to perform a repetitive or complex task for which a script exists
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Description of Steps:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Enumerate

Identify script that can be used to perform the desired task
\layout Enumerate

Select the script
\layout Enumerate

Additional requirements necessary to execute the script are met
\layout Enumerate

Execute script
\layout Enumerate

Result of script is reported to the user or displayed on the map canvas
\end_inset 
</cell>
</row>
</lyxtabular>

\end_inset 


\layout Subsubsection

Edit Data 
\layout Standard


\begin_inset  Tabular
<lyxtabular version="3" rows="9" columns="2">
<features>
<column alignment="right" valignment="top" width="2in">
<column alignment="block" valignment="top" width="3in">
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Use Case:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Edit Data
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Goal in Context:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Edit data to change the attributes, spatial location, or shape of a feature
 or features 
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Scope & Level:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Primary task
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Preconditions:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Data layer to be edited has been loaded
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Success End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Data is changed and saved to the data store
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Failed End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Data is not changed but remains in the state prior to beginning the edit
 operation
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Primary Actor(s):
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Professional user
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Trigger:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
User needs to modify data 
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Description of Steps:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Enumerate

Enter edit mode
\layout Enumerate

Locate feature to be modified
\layout Enumerate

Edit the feature
\layout Enumerate

Save data
\layout Enumerate

Exit edit mode
\end_inset 
</cell>
</row>
</lyxtabular>

\end_inset 


\layout Subsubsection

Digitize 
\layout Standard


\begin_inset  Tabular
<lyxtabular version="3" rows="9" columns="2">
<features>
<column alignment="right" valignment="top" width="2in">
<column alignment="block" valignment="top" width="3in">
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Use Case:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Digitize Data
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Goal in Context:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Create a new data layer or add to an existing layer by digitizing information
 from a raster image on the screen (heads-up digitizing)
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Scope & Level:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Primary task
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Preconditions:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Raster is loaded and displayed
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Success End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
New features are added to the data layer and saved to the data store
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Failed End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Existing data is not changed but remains in the state prior to beginning
 the edit operation
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Primary Actor(s):
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Professional user
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Trigger:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
User needs to create new data from a raster 
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Description of Steps:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Enumerate

Loads or create the target layer 
\layout Enumerate

Enter edit mode
\layout Enumerate

Digitize features using the underlying raster
\layout Enumerate

Add attributes to each feature as it is completed
\layout Enumerate

Save data
\layout Enumerate

Exit edit mode
\end_inset 
</cell>
</row>
</lyxtabular>

\end_inset 


\layout Subsubsection

Buffer Feature
\layout Standard


\begin_inset  Tabular
<lyxtabular version="3" rows="9" columns="2">
<features>
<column alignment="right" valignment="top" width="2in">
<column alignment="block" valignment="top" width="3in">
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Use Case:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Buffer Feature
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Goal in Context:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Create a new data layer that contains a buffer around one or more features
 on an existing layer
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Scope & Level:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Primary task
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Preconditions:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Data layer containing features to buffer is loaded and displayed
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Success End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
New data layer containing polygon buffers is created
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Failed End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
No new data layer is created and application remains in state prior to beginning
 of buffer operation
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Primary Actor(s):
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Professional user
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Trigger:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
User needs to buffer features for the purpose of performing spatial analysis
 or answering a question about proximity of features
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Description of Steps:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Enumerate

Select feature or features to buffer
\layout Enumerate

Specify the buffer distance in appropriate map units
\layout Enumerate

Create buffer
\layout Enumerate

Save buffer layer to permanent store
\end_inset 
</cell>
</row>
</lyxtabular>

\end_inset 


\layout Subsubsection

Process Data - Union
\layout Standard


\begin_inset  Tabular
<lyxtabular version="3" rows="9" columns="2">
<features>
<column alignment="right" valignment="top" width="2in">
<column alignment="block" valignment="top" width="3in">
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Use Case:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Process Data - Union 
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Goal in Context:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Create a new data layer that contains the union of two existing layers
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Scope & Level:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Primary task
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Preconditions:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Data layers needed for operation are loaded and displayed
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Success End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
New data layer containing union of source layers is created
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Failed End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
No new data layer is created and application remains in state prior to beginning
 of union operation
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Primary Actor(s):
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Professional user
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Trigger:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
User needs to union features for the purpose of performing spatial analysis
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Description of Steps:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Enumerate

Select layers to union
\layout Enumerate

Perform union operation
\layout Enumerate

Save resulting layer to permanent store
\end_inset 
</cell>
</row>
</lyxtabular>

\end_inset 


\layout Subsubsection

Process Data - Intersect 
\layout Standard


\begin_inset  Tabular
<lyxtabular version="3" rows="9" columns="2">
<features>
<column alignment="right" valignment="top" width="2in">
<column alignment="block" valignment="top" width="3in">
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Use Case:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Process Data - Intersect 
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Goal in Context:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Create a new data layer that contains the intersection of two existing layers
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Scope & Level:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Primary task
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Preconditions:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Data layers needed for operation are loaded and displayed
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Success End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
New data layer containing intersection of source layers is created
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Failed End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
No new data layer is created and application remains in state prior to beginning
 of intersect operation
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Primary Actor(s):
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Professional user
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Trigger:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
User needs to create a new layer representing the intersection of features
 from two source layers
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Description of Steps:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Enumerate

Select layers to intersect
\layout Enumerate

Perform intersect operation
\layout Enumerate

Save resulting layer to permanent store
\end_inset 
</cell>
</row>
</lyxtabular>

\end_inset 


\layout Subsubsection

Process Data - Merge
\layout Standard


\begin_inset  Tabular
<lyxtabular version="3" rows="9" columns="2">
<features>
<column alignment="right" valignment="top" width="2in">
<column alignment="block" valignment="top" width="3in">
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Use Case:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Process Data - Merge 
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Goal in Context:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Create a new data layer that contains the contents of two existing layers.
 The layers are 
\begin_inset Quotes eld
\end_inset 

tiled
\begin_inset Quotes erd
\end_inset 

 into one.
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Scope & Level:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Primary task
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Preconditions:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Data layers needed for operation are loaded and displayed
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Success End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
New data layer containing merge of source layers is created
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Failed End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
No new data layer is created and application remains in state prior to beginning
 of merge operation
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Primary Actor(s):
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Professional user
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Trigger:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
User needs to combine the features from two source layers into one
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Description of Steps:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Enumerate

Select layers to merge
\layout Enumerate

Perform merge operation
\layout Enumerate

Save resulting layer to permanent store
\end_inset 
</cell>
</row>
</lyxtabular>

\end_inset 


\layout Subsubsection

Change projection
\layout Standard


\begin_inset  Tabular
<lyxtabular version="3" rows="9" columns="2">
<features>
<column alignment="right" valignment="top" width="2in">
<column alignment="block" valignment="top" width="3in">
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Use Case:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Change Projection
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Goal in Context:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Project a source data layer into a new map projection to create a new data
 layer
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Scope & Level:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Primary task
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Preconditions:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Data layer needed for operation is loaded and displayed
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Success End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Data layer in desired projection is created from the source layer
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Failed End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
No new data layer is created and application remains in state prior to beginning
 of merge operation
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Primary Actor(s):
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Professional user
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Trigger:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
User needs to a copy of a data layer in a different projection
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Description of Steps:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Enumerate

Select layer to project
\layout Enumerate

Specify the projection of the source layer
\layout Enumerate

Specify the projection for the new layer
\layout Enumerate

Project the data
\layout Enumerate

Save resulting layer to permanent store
\end_inset 
</cell>
</row>
</lyxtabular>

\end_inset 


\layout Subsubsection

Import Data
\layout Standard


\begin_inset  Tabular
<lyxtabular version="3" rows="9" columns="2">
<features>
<column alignment="right" valignment="top" width="2in">
<column alignment="block" valignment="top" width="3in">
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Use Case:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Import Data
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Goal in Context:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Create a new data layer by importing data from a source not directly usable
 with QGIS
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Scope & Level:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Primary task
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Preconditions:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Application is running
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Success End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
New data layer is created
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Failed End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
No new data layer is created and application remains in state prior to beginning
 of import operation
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Primary Actor(s):
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Professional user
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Trigger:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
User needs to work with data not currently in a format supported by QGIS
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Description of Steps:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Enumerate

Select layer to project
\layout Enumerate

Specify the projection of the source layer
\layout Enumerate

Specify the projection for the new layer
\layout Enumerate

Project the data
\layout Enumerate

Save resulting layer to permanent store
\end_inset 
</cell>
</row>
</lyxtabular>

\end_inset 


\layout Subsubsection

Export Data
\layout Standard


\begin_inset  Tabular
<lyxtabular version="3" rows="9" columns="2">
<features>
<column alignment="right" valignment="top" width="2in">
<column alignment="block" valignment="top" width="3in">
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Use Case:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Export Data
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Goal in Context:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Convert data from one format (source) to another (targert) for the purpose
 of using it in another application.
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Scope & Level:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Primary task
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Preconditions:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Data layer needed for operation is loaded and displayed
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Success End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Export file is created
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Failed End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Export file is not created and application remains in state prior to beginning
 of export operation
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Primary Actor(s):
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Professional user
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Trigger:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
User needs to export data for use by another application
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Description of Steps:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Enumerate

Select data layer to export
\layout Enumerate

Choose output location
\layout Enumerate

Export the data
\end_inset 
</cell>
</row>
</lyxtabular>

\end_inset 


\layout Subsubsection

Export Selected Set
\layout Standard


\begin_inset  Tabular
<lyxtabular version="3" rows="9" columns="2">
<features>
<column alignment="right" valignment="top" width="2in">
<column alignment="block" valignment="top" width="3in">
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Use Case:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Export Selected Set
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Goal in Context:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Convert a selected set of feature data from one format (source) to another
 (targert) for the purpose of using it in another application.
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Scope & Level:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Primary task
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Preconditions:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Data layer needed for operation is loaded and displayed
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Success End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Export file is created
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Failed End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Export file is not created and application remains in state prior to beginning
 of export operation
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Primary Actor(s):
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Professional user
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Trigger:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
User needs to export data for use by another application
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Description of Steps:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Enumerate

Select data layer to export
\layout Enumerate

Select features to be included in the export
\layout Enumerate

Choose output location
\layout Enumerate

Export the features
\end_inset 
</cell>
</row>
</lyxtabular>

\end_inset 


\layout Subsubsection

Select Spatially
\layout Standard


\begin_inset  Tabular
<lyxtabular version="3" rows="9" columns="2">
<features>
<column alignment="right" valignment="top" width="2in">
<column alignment="block" valignment="top" width="3in">
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Use Case:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Select Spatially
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Goal in Context:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Select features on the map canvas for purpose of using in another function
 or operation
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Scope & Level:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Subfunction
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Preconditions:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Data layer needed for operation is loaded and displayed
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Success End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Features are selected and highlighted on map
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Failed End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
No selection set is created and application remains in state prior to beginning
 of export operation
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Primary Actor(s):
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Professional user
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Trigger:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
User needs to select features for use in another function or operation
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Description of Steps:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Enumerate

Select data layer containing features of interest
\layout Enumerate

Interactively draw a box around features
\layout Enumerate

Select
\end_inset 
</cell>
</row>
</lyxtabular>

\end_inset 


\layout Subsubsection

Select by Attribute
\layout Standard


\begin_inset  Tabular
<lyxtabular version="3" rows="9" columns="2">
<features>
<column alignment="right" valignment="top" width="2in">
<column alignment="block" valignment="top" width="3in">
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Use Case:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Select by Attribute
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Goal in Context:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Select features on the map canvas for purpose of using in another function
 or operation
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Scope & Level:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Subfunction
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Preconditions:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Data layer needed for operation is loaded and displayed
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Success End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Features are selected and highlighted on map
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Failed End Condition:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
No selection set is created and application remains in state prior to beginning
 of export operation
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Primary Actor(s):
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
Professional user
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Trigger:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 
User needs to select features for use in another function or operation
\end_inset 
</cell>
</row>
<row>
<cell alignment="center" valignment="top" topline="true" leftline="true" usebox="none">
\begin_inset Text

\layout Standard
\added_space_top smallskip 

\series bold 
Description of Steps:
\end_inset 
</cell>
<cell alignment="center" valignment="top" topline="true" leftline="true" rightline="true" usebox="none">
\begin_inset Text

\layout Enumerate

Select data layer containing features of interest
\layout Enumerate

Open the query builder to define the selection criteria
\layout Enumerate

Execute the query to select features
\end_inset 
</cell>
</row>
</lyxtabular>

\end_inset 


\layout Section

Core Architecture
\layout Standard

This section describes the functionality of the QGIS 
\begin_inset Quotes eld
\end_inset 

core
\begin_inset Quotes erd
\end_inset 

.
 The core application contains minimal functionality.
 QGIS depends on plugins to implement all non-trivial functions.
 The components of the core are discussed in the following sections.
 Details with regard to physical implementation are included where appropriate.
\layout Subsection

Main Window
\layout Subsection

Plugins
\the_end