Learning from experience is the key to successes for all that develop software. Both the successes and the failures in softwa e projects can help us to improve. Here we discuss how two versions of Post Mortem Analysis (PMA) as methods for harvesting experience from completed software projects, which can be part of a larger knowledge managment program. The two methods are tail red for use in small and medium size comapanies, and are conceptually easy to apply. In addition, they require few resources compared to other methods in the field. We think that the methods are useful for companies when they need to document their kno ledge, find improvement actions and as a start of systematic knowledge harvesting.