Evaluation:

The evaluation phase uses information available to evaluate and improve business
process models and their implementations. Execution logs are evaluated
using business activity monitoring and process mining techniques. These techniques
aim at identifying the quality of business process models and the adequacy
of the execution environment.
For instance, business activity monitoring might identify that a certain
activity takes too long due to shortage of resources required to conduct it.
Since this information is useful also for business process simulation, these
phases are strongly related.
Similar considerations apply to process mining, which has recently developed
into an active field of research. There are different applications of process
mining. If the execution logs are generated by traditional information systems,
they collectively can be used as a starting point to develop business process
models. The evaluation of existing business process models is another application
area of process mining. The evaluation phase is not covered in detail in
this book; for further information, the reader is referred to the bibliographical
notes in the end of this part.