data analysis (and user interaction) geog 463 5/7/04
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Data Analysis(and User Interaction)
GEOG 463
5/7/04
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Data Analysis Report• Introduction / Review
• Analysis Plan– Data flow/process diagrams for each objective
• (User interface design)– Event trace for each interactive element
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System Design• Use an object-oriented (UML) approach • Three components to the design (conceptual
model)– Object model (database)– Functional model (data processing)– Dynamic model (user interface)
• Object model specifies what it happens to• Functional model specifies what happens • Dynamic model specifies when it happens • Potentially need all three for systems
requirement
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Functional Model• Describes the computations within a
system• Shows how objects (data) are transformed
to satisfy objectives – create information• Communicates how outputs are derived
from inputs• Specifies the meaning of the operations in
the object model and the actions in the dynamic model
• Depicted using data flow or data process diagrams
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Data Processing to Create a Seismic Landslide Map
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Data Process Diagram of Seismic Landslide Analysis
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Data Flow Diagram of Community Recovery from Earthquakes
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Dynamic Model for Interactive Systems
• Concerned with changes (states) of objects (interactive elements) and their relationships over time
• Concerned with control -- the sequence of events or operations that occur as the result of some stimuli
• Described using event trace diagrams and state diagrams
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User Interface for Community Recovery Decision Support System
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Event Trace Diagram for Recovery Decision Support System
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State Diagram for Recovery Decision Support System
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Unified Modeling Language Resources
• Software to use in the department– Microsoft Visio or other drawing tools– ESRI’s “Building Geodatabases with Visio”
• IBM Rational Rose literature on design w/ UML– Introduction to UML– Entity-relationship modeling with UML
• UML tutorials on the web