Understanding Modeling Requirements of Unstructured Business Processes.

Management of structured business processes is of interest to both academia and industry, where academia focuses on the development of methods and techniques while industry focuses on the development of supporting tools. With the shift from routine to knowledge work, the relevance of management of Unstructured Business Processes (UBP) is increasing. However, currently available modeling notations are not optimally suited for modeling UBP. By means of a representative example, we investigate the limitations of Business Process Model and Notation (BPMN) and Case Management Model and Notation (CMMN) in this respect. We derive a set of requirements for representations that are needed for modeling UBP. These requirements allow to express end-to-end business processes while providing flexibility for run-time changes. We demonstrate these requirements by a possible extension to BPMN.