Source Code Quality Management by Visual Exploration

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Source Code Quality Management by Visual
Exploration

• JavaOne BOF 1934

Thomas Baudel Bruno Haible
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Example JDK 1.5
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InfoViz Concepts (1/4)

• External Cognition

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InfoViz Concepts (2/4)

• Information graphics data layout conveys
  information

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InfoViz Concepts (3/4)

• Computer-based, interactive visual
  representations to amplify cognition
• Scientific Visualization physical data
• Information Visualization abstract data
• gt no intrinsic visual representation

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Information Visualization (4/4)
Use of computer-based, interactive visual
representations of abstract data to amplify
cognition
Using the properties of vision to identify
significant trends, patterns structures
Visual understanding of the data at hand
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Source Code Quality Management

• Several Data sources can be exploited
• Source code, profiler/debugging data, versioning
  control management logs, unit tests logs, defect
  reports database planning/market data
• Several Roles
• Project manager, project architect/analyst,
  developer, Q/A engineer, tech support, Product
  manager...
• Many issues to be addressed
• Code size increases, Legacy code and turnover
  management, Increased integration of software
  components
• gt Tools to make sense of development process

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Plan

• 4 uses of a single visualization tool will be
  presented for a variety of tasks
• Source code analysis
• Coverage analysis
• Team activity monitoring/planning
• Defect reports tracking and follow-up
• Conclusion other tools, techniques and pointers

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Conclusion (1/2)

• These are only examples of use
• Other specialized tools http//www2.ilog.com/previ
  ew/Discovery/DevelopmentTools
• General purpose visualization tools
• Spotfire, HiveGroup... http//dmoz.org/Reference/
  Knowledge_Management/Knowledge_Discovery/Informat
  ion_Visualization/

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Conclusion (2/2)

• The process is always the same
• Get the text only-output of a process (code, CVS,
  trace...)
• Analyze it with one of the general purpose tool
• Deploy the relevant views development component
• ILOG Discovery is freely downloadable at
• http//www2.ilog.com/preview/Discovery