Formal analysis of executions of organizational scenarios based on process-oriented models

This paper presents various formal techniques for analysis of executions of organizational scenarios based on process-oriented models of organizations. Process-oriented models describe (prescribe) ordering and timing relations on organizational processes, modes of use of resources, allocations of actors to processes etc. The actual execution may diverge from scenarios (pre)defined by a model. A part of techniques proposed in this paper is dedicated to establishing the correspondence between a formalized execution (i.e., a trace) and the corresponding process-oriented model. Other techniques proposed in this paper provide the analyst with wide possibilities to evaluate organizational performance and to identify bottlenecks and other inefficiencies in the organizational operation. For the proposed formal analysis the order-sorted predicate Temporal Trace Language (TTL) is used and it is supported by the dedicated software tool TTL Checker. The analysis approaches considered in this paper are illustrated by a case study in the context of an organization from the security domain.