By Jan Mendling
Business procedure modeling performs a major function within the administration of industrial methods. As important layout artifacts, enterprise technique versions are topic to caliber concerns. The absence of formal mistakes akin to deadlocks is of paramount value for the following implementation of the process.
In his e-book Jan Mendling develops a framework for the detection of formal error in company strategy versions and the prediction of mistakes likelihood in keeping with caliber attributes of those versions (metrics). He offers an actual description of Event-driven approach Chains (EPCs), their control-flow semantics and an appropriate correctness criterion referred to as EPC soundness.
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A) In this phase, all dead context information is propagated in the EPC until no new dead context can be derived. b) All wait context information is propagated until no new wait context can be derived. It is necessary to have two phases (first the dead context propagation and then the wait context propagation) in order to avoid infinite cycles of context changes (details below). c) All negative tokens are propagated until no negative token can be propagated anymore. This phase cannot run into an endless loop (details below).
Process interfaces have one incoming or one outgoing arcs. ∀p ∈ P : (|•p| = 1 ∧ |p•| = 0) ∨ (|•p| = 0 ∧ |p•| = 1). 6. Connectors have at least one incoming and one outgoing arc such that ∀c ∈ C : (|•c| = 1 ∧ |c•| ≥ 1) ∨ (|•c| ≥ 1 ∧ |c•| = 1). If an EPC is syntactically correct it is also syntactically correct according to a relaxed definition. 7]). 34]. Such deposition techniques were also defined for EPCs (see [325, 284, 191]). 5 gives the example of a return deliveries process that is included in the procurement module of the SAP Reference Model.
The SEQ-connector is introduced in Priemer [341]. It can be used to specify non-parallel, but arbitrary orders of activities. As such, a SEQ split-join pair captures the semantics of workflow pattern 17 (interleaved parallel routing) as described in [12]. Rosemann introduces an ET-connector that explicitly models a decision table and a so-called OR1 connector to mark branches that are always executed [358]. The motivation of both these proposals is to offer a straightforward way to model certain behavior.