1 / 10

Software Evolution Visualization

Software Evolution Visualization. Lucian Voinea. Why Software Evolution Visualization ?. Software understanding what is the structure of the project ? what is important ? what is difficult ? who work on it ? what parts are connected to a given part ?

vielka-lang
Télécharger la présentation

Software Evolution Visualization

An Image/Link below is provided (as is) to download presentation Download Policy: Content on the Website is provided to you AS IS for your information and personal use and may not be sold / licensed / shared on other websites without getting consent from its author. Content is provided to you AS IS for your information and personal use only. Download presentation by click this link. While downloading, if for some reason you are not able to download a presentation, the publisher may have deleted the file from their server. During download, if you can't get a presentation, the file might be deleted by the publisher.

E N D

Presentation Transcript

  1. Software Evolution Visualization Lucian Voinea

  2. Why Software EvolutionVisualization? • Software understanding • what is the structure of the project ? • what is important ? • what is difficult ? • who work on it ? • what parts are connected to a given part ? • what parts refer to a given aspect ? • Product and process assessment • what is the process ? • what is the core team ? • where is the activity concentrated ? • what is stable ?

  3. Challenges • Data acquisition • data source  SW Configuration Management • long acquisition times • large storage space, large bandwidth • data parsing & maintenance • Data analysis • - Enrich recorded evolution data E.g. evolution similarity metrics • Data visualization • multivariate : 10s attributes (Demo 6 attributes) • large data amount : 100s files,10s versions, 1000s lines • VTK – 2700 files x 100 versions ArgoUML – 4452 files x 80 versions SW Configuration Management≠SW evolution mining

  4. SW Evolution Visualization Toolset data extraction version control management system CVSscan CVSgrab CVS Project evolutionvisualization File evolutionvisualization

  5. Metric views System evolution at time ti Vertical layout – given by a sort criteria E.g. Creation time, Folder, Activity, Similarity Time V1 V2 V3 F1 F2 F3 Evolutionof file Fi F4 Files CVSgrab Color - encodes a file metric computed on a given version E.g. File type, Version author, Size increase, Release ID,Specific text, Activity

  6. Horizontalmetric : Release ID Similar Different Vertical metric : similarity CVSgrab Example Color encodes version author Time Files

  7. Time v1 v2 v3 v4 v5 CVSscan if self.bShowClusterColor: glBlendFunc(GL_ONE_MINUS_... glEnable(GL_BLEND) yPos = 0 bSwitch = True for i in lCushionMap: if bSwitch: cushions.drawColorCl.. else: cushions.drawColorClus… bSwitch = not bSwitch yPos = yPos + i glDisable(GL_BLEND) #cushion clusters glBlendFunc(GL_ZERO,GL_... glEnable(GL_BLEND) yPos = 0 bSwitch = True Color - encodes a line metric

  8. CVSscan Line layout

  9. Color encodes authors CVSscan Example Color encodes content

  10. Conclusions • Toolset for visualization of software evolution : CVSgrab & CVSscan • Exploit source code history from CVS as main source for getting insight in the structure and development process • Complements existing reverse engineering and code navigation tools • Outlook: Improve the data analysis step, find mechanisms for annotation management, improve selection mechanisms, enhance the visualization with new features, extend the data acquisition sources and types… www.win.tue.nl/~lvoinea/VCN.html

More Related