On the Support of Workflow Activity Patterns in Process Modeling Tools: Purpose and Requirements

Abstract

Patterns increase the reuse of existing knowledge (e.g., design solutions, source code) within organizations and help to achieve consistency between applications. Patterns for process design have received considerable attention by both business analysts and researchers. Several pattern categories have been proposed including patterns for control and data flow, resources, process change, and exception handling. Workflow activity patterns, which can be used as building blocks for business process models (e.g., approval, task execution request), however, have not been explored in-depth so far. Related to this problem we have proposed a set of workflow activity patterns in the ProWAP project. Each activity pattern represents a recurrent business function as it can be frequently found in business processes. The completeness and existence of our activity patterns has been evaluated through an extensive analysis of real process models. In this paper we discuss how to implement activity patterns within a BPM tool. In particular, we describe major goals and requirements of the BPM tool we are currently developing and in which we apply workflow activity patterns. In this context, we also provide a discussion regarding the notion we use for representing activity patterns (BPMN 1.2 vs. UML 2.0).

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