Software development processes are often not explicitly modelled and sometimes even chaotic. In order to keep track of the involved documents and files, engineers use software configuration management systems. Along the way, those systems collect and store information on the software development process itself. In this paper, we show how this information can be used for constructing explicit process models, which is called process mining; and we show how the Process Mining Framework ProM can help engineers in obtaining a process model and in analysing, optimising and better understanding their software processes