"Experiences with Hackystat as a service-oriented architecture", Philip Johnson, Shaoxuan Zhang, Pavel Senin

Abstract: Hackystat is an open source framework for automated collection and analysis of software engineering process and product data.  Hackystat has been in development since 2001, and has gone through eight major architectural revisions during that time.  In 2007, we performed the latest architectural revision, whose primary goal was to reimplement Hackystat as a service-oriented architecture (SOA).  This version has now been in public release for a year, and this paper reports on our experiences: the motivations that led us to reimplement the system as a SOA, the costs and benefits of that conversion, and our lessons learned.

Available at: http://csdl.ics.hawaii.edu/techreports/09-07/09-07.pdf