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Compliance checking is gaining importance as today's organizations need to show that operational processes are executed in a controlled manner while satisfying prede¿ned (legal) requirements. Deviations may be costly and expose the organization to severe risks. Compliance checking is of growing importance for the business process management and auditing communities. This paper presents an approach for checking compliance of observed process executions recorded in an event log to control-¿ow and temporal compliance requirements. We show a collection of 54 control ¿ow and 15 temporal compliance rules, distributed respectively over 10 and 7 categories. In addition we present how temporal compliance requirements discussed in literature can be uni¿ed and formalized using a generic temporal compliance rule. To check compliance with respect to a compliance rule, the event log describing the observed behavior is aligned with the corresponding rule. The alignment then shows which events occurred out of speci¿ed order and which events deviated by which amount of time from the prescribed behavior. The approach is ¿exible (easy to express new rules), and allowing for multi-perspective diagnostic information in case of compliance violations. The technique and corresponding tool support have been experimentally validated using a case study. Keywords: compliance checking, process mining, conformance checking, data-aware conformance checking, Petri-nets

Mode of access: Internet. ; Author corporate affiliation: National Highway Safety Bureau, Washington, D.C. ; Subject code: FGE ; Subject code: RCCH ; Subject code: VH ; Subject code: WW

Traditionally, extra high voltage (EHV) transmission systems consist exclusively of overhead lines (OHL) but in the recent years the utilization of high voltage AC (HVAC) power cables is increasing due to environmental, political and operational aspects. To study the impact of HVAC power cables on temporary overvoltages and slow front transients, a simulation model of the large-scale network is required. Guidelines concerning the modeling detail for the surrounding network need to be established to ensure sufficient accurate results. Existing guidelines for purely OHL transmission networks may not be adequate since the integration of HVAC power cables shift the harmonic impedance of the network to lower frequencies and that can affect the extent of the needed simulation model. Much effort can be saved from obtaining detailed data for an extensive but proper model, but a less detailed model might not describe the network behavior with sufficient accuracy. In this study, simplification options are considered, for which the time to construct and analyze a simulation model can be reduced. The simplification options are compared with the reference model (full detail), and judged based on three indicators for the level of accuracy: frequency and amplitude of the main resonance, and maximum over-voltage. As a result, guidelines on the extent of the simulated network and in which detail the model has to be built are proposed. The inverse approach, i.e. increasing level of detail until simulation results hardly change leads to similar results, but requires equivalent short-circuit networks for the rest of the grid. The method is tested for the Dutch 380 kV grid where an underground cable connection of 10.8 km length is introduced in 2013 and a second connection is planned for 2017.