  We propose DAB -- a data-aware extension of the BPMN de-facto standard with
the ability of operating over case and persistent data (partitioned into a
read-only catalog and a read-write repository), and that balances between
expressiveness and the possibility of supporting parameterized verification of
safety properties on top of it. In particular, we take inspiration from the
literature on verification of artifact systems, and consider verification
problems where safety properties are checked irrespectively of the content of
the read-only catalog, possibly considering an unbounded number of active cases
and tuples in the catalog and repository. Such problems are tackled using fully
implemented array-based backward reachability techniques belonging to the
well-established tradition of SMT model checking. We also identify relevant
classes of DABs for which the backward reachability procedure implemented in
the MCMT array-based model checker is sound and complete, and then further
strengthen such classes to ensure termination.
