Most free / open source software projects have publicly available repositories with many details about how their activity. All changes are recorded in the source code management system (Subversion, git, Mercurial, bazaar, etc.), along with who and when made the change, and other metainformation. Issue tracking (ticketing) systems (Bugzilla, Jira, etc.) record not only bug reports and how they are fixed, but also feature requests, design discussions, etc. Mailing lists, irc logs or forums carry information about discussions, user support, etc. All of this information, when properly analyzed, can be used to track how a project is performing, and to detect interesting patterns and potential or real problems early.
The talk presents how all if this can be done with the tools in the MetricsGrimoire toolset, including some examples for specific projects. The talk was delivered at IRILL, http://irill.org