Visualization of CVS Repository Information

Mining software repositories is an important activity during software evolution, as the extracted data is used to support a variety of software maintenance tasks. The key information extracted from these repositories gives a picture of the changes on the software system. To have a complete picture, tailored to the needs of the developer, the extracted data needs to be filtered, aggregated, and presented to the users. In this paper we propose a new visualization for such data, which relies on an existing software visualization front-end, SourceViewer3D (sv3D). The new visualization allows users to define multiple views of the change history data, each view helps answer a set of questions relevant to specific maintenance tasks. Data can be viewed at different granularity (e.g., file, line of text, method, class) and comprehensive views can be defined, which display to the user multiple data types at the same time. Complex questions and tasks can be solved with the aid of such views