Process Mining using ProM ( Process mining techniques attempt to extract non-trivial and useful information from so-called event logs”. One element of process mining is control-flow discovery, i.e., automatically constructing a process model (e.g., a Petri net) describing the causal dependencies between activities. ProM is an open source process mining tool. Its functionality is not limited to control-flow discovery. ProM also allows for the discovery of other perspectives (e.g., data and resources) and supports related techniques such as conformance checking, model extension, model transformation, verification, etc. This makes ProM a versatile tool for process analysis which is not restricted to model analysis but also includes log-based analysis.