Every SEPG has a different approach and mission. Some of the flavors include:
Fowler, Priscilla; Rifkin, Stanley (1990). "Software Engineering Process Group Guide". CMU/SEI-90-TR-024. Carnegie Mellon University. Retrieved 2009-09-05. http://www.sei.cmu.edu/library/abstracts/reports/90tr024.cfm ↩
From the writings of Jeff Dalton, the author of "Agile CMMI" http://askthecmmiappraiser.blogspot.com/2007/02/dear-appraiser-i-want-some-information.html ↩