[Night 2] Petri Net-based Object-centric Processes with Read-only Data

February 10, 2021 During the last decade, various approaches have been put forward to integrate business processes with different types of data. Each of these approaches reflects specific demands in the whole process-data integration spectrum. One particularly important point is the capability of these approaches to flexibly accommodate processes with multiple case objects that need to co-evolve. In this presentation, I will introduce an extension of coloured Petri nets, called catalog and object-aware nets (COA-nets), that provides two key features to capture this type of processes. On the one hand, net transitions are equipped with guards that simultaneously inspect the content of tokens and query facts stored in a read-only, persistent database. On the other hand, such transitions can inject data into tokens by extracting relevant values from the database or by generating genuinely fresh ones. I will also show how COA-nets can be used to represent various multi-case modelling scenarios involving objects w