Humboldt-Universitat zu Berlin
There is a wide variety of drivers for business process modeling initiatives, reaching from business evolution and process optimization over compliance checking and process certification to process enactment. That, in turn, results in models that differ in content due to serving different purposes. In particular, processes are modeled on different abstraction levels and assume different perspectives. Vertical alignment of process models aims at handling these deviations. While the advantages of such an alignment for inter-model analysis and change propagation are out of question, a number of challenges have still to be addressed. In this paper, the authors discuss three main challenges for vertical alignment in detail.