BPMN-E2: a BPMN extension for an enhanced workflow description

This paper discusses a business process model and notation (BPMN) extension that includes new elements designed to improve its expressiveness. In previous works, different shortcomings concerning the BPMN language were detected. As a result, a set of requirements to overcome these issues was collected and used to guide this work. The proposed extension supports the representation of information commonly used by experts in the hazard analysis and critical control points domain, usually expressed in natural language, in a machine-understandable fashion. To take full advantage of the features introduced in this BPMN extension, tools such as ProM can be easily upgraded with appropriate plugins to support the new elements. In this line, an advanced conformance checking plugin was developed for process mining on BPMN models. A real-world example of use showing the benefits of applying the new elements is also discussed. This proposal paves the way for novel advanced analysis mechanisms for traceability systems.