1. Interactive Visualization of Large Structured Development Environment Project Update – Nov 16 2005 By Anirban Sinha (Ani)

2. Project update presentation - 16th Nov 2005 2 Problem Large software projects can get really complicated specially when large number of modules are added & integrated together. It would be really helpful if we can develop a tool to visualize structures & method call sequences within the source codes using interactive trees.

3. Project update presentation - 16th Nov 2005 3 Proposed Solution – Original Plan Use Prefuse Infovis toolkit to visualize program structures written in C as graphical models & add interactions. To compensate for large complicated graphical structures for large projects, we add zooming & panning facilities. For static analysis of code, I originally planned to use my previously designed code parser & add some modifications to it when required.

4. Project update presentation - 16th Nov 2005 4 Progress so far … Configured Prefuse to work in eclipse. Front end structure has been designed to load a file & display graphical visualization.

5. Project update presentation - 16th Nov 2005 5 Snapshots …

6. Project update presentation - 16th Nov 2005 6 Snapshot Continued …

7. Project update presentation - 16th Nov 2005 7 A look at milestones … Week 1 (10 HRS) Establish familiarity with the Prefuse Toolkit.  Week 2 (15 HRS) Try out the animated graph with a dummy adjacency matrix  Possibly miscalculated/unanticipated milestones?? True. – it definitely needs revision.

8. Project update presentation - 16th Nov 2005 8 Challenges So far/Diversions from Original Proposal … Soon, realization dawned in that designing a static analyzer for C source code is in itself a large project. Started looking for open source (so that I could tweak & port them with Prefuse), possibly cross platform & eclipse configurable analyzers. Did not get any effective tools that analyze C codes, but got one that analyses exception flow control in Java codes - Jex.

9. Project update presentation - 16th Nov 2005 9 Jex - A Tool for Analyzing Exception Flow in Java Programs http://www.cs.ubc.ca/~mrobilla/jex/ Originally designed by Martin P. Robillard during his masters research @ UBC. He is currently a faculty at McGill. Analyzes the flow of exceptions in Java programs. Is open source, written in Java & eclipse configurable. Produces analysis results in text files which can be visualized.

10. Project update presentation - 16th Nov 2005 10 Current Work/Future Directions … Currently working on to run Jex on UNIX system & run it on a sample java file & observe its output (having some CLASSPATH error). Future work will mostly be concerned with tweaking Jex to produce output file compatible with Prefuse & tweaking Prefuse toolkit to bring about effective visualization of the exception flow structure. Need to talk to Chris and/or Gail Murphy for further insights.

11. Project update presentation - 16th Nov 2005 11 References consulted so far … Prawn: An Interactive Tool for Software Visualization, Andrew Chan, Reid Holmes. Pathfinder: exposing the mental map of program navigation, Mik Kersten (beatmik- at-acm.org), CS 533C Visualization Project, March 1 2004. Martin Robillard (martin@cs.mcgill.ca). The Aristotle Project http://www.cc.gatech.edu/aristotle (got this reference from Martin).