large component diagrams visualization lukas holy dcse, fas, university of west bohemia pilsen, cz
TRANSCRIPT
Large component diagrams visualization
Lukas Holy
DCSE, FAS, University of West Bohemia
Pilsen, CZ
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Structure of this presentation• Introduction of software components and problems in
visualization of component-based software
• Proposed techniques for improving diagram visualization
• Tool demonstration
• Summary of contribution
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Introduction
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Software components - briefly
•Clearly defines its interfaces
•UML component diagram
•Can be started independently•Have a black-box nature•They are a subject of third party
composition
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Options in visualizing component software
• Component model-specific tool/notation▫ Better comprises the model specifics▫ Not well-know visual syntax
• Generic component-aware tool/notation▫ Model independent▫ Probably unable to represent specific features
• UML with profiles▫ Enables to further specify semantics▫ But specific features will probably not be easily accessible
• Plain UML▫ Well-known▫ May not capture all the specifics
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Large component diagrams visualization
•How to handle the complexity of large UML component diagrams?
•Applications can easily consist of hundreds nodes
•Either overview or detailed view
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Proposed techniques
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Factors influencing graph visualization
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Presented Ideas & Techniques
• Visual clutter reduction▫Based on removing highly connected components
▫ Interface clustering
▫ Interactive highlighting Details on demand
▫Groups and clusters identification
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Application wireframe
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Clustered Interfaces and Symbols - Component
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Clustered Interfaces and Symbols - Group
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SeCo technique - design overview
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Complex Component Application Explorer tool demonstration
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Viewport for component diagrams
•Better exploration and understanding •Clustering, proxy elements and detailed view
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CoCA-Ex - Viewport integration
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Preliminary validation - Removing nodes with highest degrees
Nuxeo application visualized by AIVA
All 202 components Removed 7 components with highest degrees
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Summary
• Lines reduction, by removing the selected components from the diagram area.
• Symbolic delegates instead of lines.
• Useful in the reverse engineering process
• It helps to create the mental model of shown application
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Q & A
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