a novel data visualization method that shows the progress of individual participants’ code & the comment contributions to open source software projects. the design of the "bloom diagram" blends techniques such as concentric pie charts, animation, motion trails & social proxies to produce a compact presentation of the large scale dynamics around software development.
the inner ring represents "code events" (changes to a file in the code repository), the outer ring represents "comment events" (postings on the project's mailing lists, forums & bug trackers). when a user moves a timeline slider, animated bubbles appear in the inner or outer ring, representing the events. the animated bubble position provides a cue about the frequency & recency of the event.
see also ambient lava lamps & code profiles.
[ibm.com & acm.org(pdf)]