Abstract
We propose DAB – a data-aware extension of BPMN where the process operates over case and persistent data (partitioned into a read-only database called catalog and a read-write database called repository). The model trades off between expressiveness and the possibility of supporting parameterized verification of safety properties on top of it. Specifically, taking inspiration from the literature on verification of artifact systems, we study verification problems where safety properties are checked irrespectively of the content of the read-only catalog, and accepting the potential presence of unboundedly many tuples in the catalog and repository. We tackle such problems using an array-based backward reachability procedure fully implemented in MCMT – a state-of-the-art array-based SMT model checker. Notably, we prove that the procedure is sound and complete for checking safety of DABs, and single out additional conditions that guarantee its termination and, in turn, show decidability of checking safety.
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Notes
- 1.
The interplay among multiple cases is also crucial. The technical report [3] already contains an extension of the framework presented here, in which multiple cases are modeled and verified.
- 2.
These are called data objects in BPMN, but we prefer to use the term case data to avoid name clashes with the formal notions.
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Calvanese, D., Ghilardi, S., Gianola, A., Montali, M., Rivkin, A. (2019). Formal Modeling and SMT-Based Parameterized Verification of Data-Aware BPMN. In: Hildebrandt, T., van Dongen, B., Röglinger, M., Mendling, J. (eds) Business Process Management. BPM 2019. Lecture Notes in Computer Science(), vol 11675. Springer, Cham. https://doi.org/10.1007/978-3-030-26619-6_12
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