Processes in Product development tend to be rather unstructured because they are low frequent (compared to production processes) and rely on creativity and problem-solving capabilities. For example, we have been mining event logs from Software Configuration Management (SCM) systems such as CVS and Subversion. In addition to managing the artifacts created by software engineers, these systems also collect and store information on the software development process to answer questions such as “Who created, accessed, or changed which documents?”, “When was a particular task completed?”, etc. Process discovery efforts using the event logs of SCM systems as input typically reveal Spaghetti-like processes as shown before.