Deriving Process-Related RBAC Models from Process Execution Histories

In a business process context, access permissions grant the rights to perform certain tasks. In particular, process-related role-based access control (RBAC) models define RBAC policies for process-aware information systems (PAIS). In addition, process-related RBAC models allow for the definition of entailment constraints on tasks, such as mutual exclusion or binding constraints, for example. This paper presents an approach to derive process-related RBAC models from process execution histories recorded by a PAIS. In particular, we present algorithms to derive corresponding RBAC artifacts and entailment constraints from standardized XML-based log files. All algorithms presented in this paper have been implemented and were tested via process logs created with CPN Tools.