Subject-Oriented Modeling Workflow Control Patterns with PASS

This work presents an analysis of the Workflow Control Patterns from the viewpoint of subject-oriented modeling, utilizing the explicitly subject-oriented process modeling language. Workflow Control Patterns, a set of Petri-Net-based descriptions of process fragments, were originally developed by van der Aalst and ter Hofstede 25 years ago. They aimed to holistically delineate the fundamental requirements that recurrently arise in business process modeling and to provide a conceptual basis for process technology. In our study, we have analyzed these patterns and translated all 43 existing control patterns into one or more adequate equivalent representations in PASS. The goal was to investigate the hypothesis and show that and how PASS is capable of representing all patterns, while also identifying the differences that emerge due to the paradigmatic gap between Petri Nets and PASS. The complete results are available in an online repository, the PASS Workflow Control Pattern Library. This resource will enable future modelers to review the translations and utilize the patterns to enhance their skills in SO/PASS modeling.