More and more organizations are adhering to the Business Processes Management (BPM) in order to reach higher levels of competitiveness and reduce operational costs. The execution of business process has, necessarily, a time dimension. Nevertheless, while recognised as important, the temporal dimension has been neglected by most of the process modelling languages to these days. The BPMN (Business Process Model and Notation) language, similarly to the recent CMMN (Case Management Model and Notation) proposal which was developed to complement it, are not the exception. Indeed, while BPMN is one of the most widely used language for business process modelling, there are temporal constraints impossible to describe in BPMN. The work behind this paper aims to contribute to solve this issue by identifying the most relevant business processes temporal constraints. The final purpose of this work is to propose a set of temporal extensions to the BPMN and CMMN languages.

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