Abstract:Recently, a variety of workflow patterns was suggested for capturing different aspects in process-aware information systems (PAISs) including control and data flow, resources, process change, and exception handling. All these patterns are highly relevant for implementing PAISs and for designing process modeling languages. However, current patterns provide only a partial answer to the question which business functions a designer might want to reuse when modeling processes. This paper presents a revised version of a collection of activity patterns to deal with this challenge. Each of them is related to a recurrent business function as it can be frequently found in process models (e.g., task execution request, notification, approval). We describe the identified activity patterns and their variants in detail. The main purpose of our paper is to discuss results from empirical studies, in which we analyzed more than 200 process models in order to evidence the practical relevance of the patterns. This includes a detailed analysis of the context in which activity patterns occur as well the frequency of this occurrence. These empirical findings can be used for the design of more intelligent, pattern-based process modeling tools.Keywords: workflow activity patterns; business functions; business process management; business process modeling.Reference to this paper should be made as follows: Thom, L.H., Reichert, M., Iochpe, C.

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Abstract.Recently, a variety of workflow patterns has been proposed focusing on specific aspects like control flow, data flow, and resource assignments. Though these patterns are relevant for implementing Business Process Modeling (BPM) tools and for evaluating the expressiveness of BPM languages, they do not contribute to reduce redundant specifications of recurrent business functions when modeling business processes. Furthermore, contemporary BPM tools do not support process designers in defining, querying, and reusing activity patterns as building blocks for process modeling. Related to these problems this paper proposes a set of activity patterns, evidences their practical relevance, and introduces a BPM tool for the modeling of business processes based on the reuse of these activity patterns. Altogether our approach fosters reuse of business function specifications and helps to improve the quality and comparability of business process models.