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- ZeitschriftenartikelLS3: Latent Semantic Analysis-based Similarity Search for Process Models(Enterprise Modelling and Information Systems Architectures (EMISAJ) – International Journal of Conceptual Modeling: Vol. 12, Nr. 2, 2017) Schoknecht, Andreas; Oberweis, AndreasLarge process model collections in use today contain hundreds or even thousands of conceptual process models. Search functionalities can help in handling such large collections for purposes such as duplicate detection or reuse of models. One popular stream of search functionalities is similarity-based search which utilizes similarity measures for finding similar models in a large collection. Most of these approaches base on an underlying alignment between the activities of the compared process models. Yet, such an alignment seems to be quite difficult to achieve according to the results of the Process Model Matching contests conducted in recent years. Therefore, the Latent Semantic Analysis-based Similarity Search (LS3) technique presented in this article does not rely on such an alignment, but uses a Latent Semantic Analysis-based similarity measure for retrieving similar models. An evaluation with 138 real-life process models shows a strong performance in terms of Precision, Recall, F-Measure, R-Precision and Precision-at-k, thereby outperforming five other techniques for similarity-based search. Additionally, the run time of the LS3 query calculation is significantly faster than any of the other approaches.
- ZeitschriftenartikelThe Process Checklist(Enterprise Modelling and Information Systems Architectures - An International Journal: Vol. 12, Nr. 1, 2017) Baumann, Michaela; Baumann, Michael Heinrich; Schönig, Stefan; Jablonski, StefanWhen enterprises are determined to introduce process management, they usually aim at IT system supported execution of processes by Workflow Management Systems (WfMSs) or Process-aware Information Systems. In constrast to this common tendency of process technology, we introduce a paper-based scheme to enact and execute human-driven processes in the work at hand. Our approach is motivated by insights into problems of firms that tried to establish process technology and failed with conventional methods. One of the design objectives for our scheme was to provide a straightforward, quickly viable alternative to WfMS-based process execution at a reasonable effort. The paper-based scheme we introduce follows classical checklist concepts and builds upon the checklist idea in order to reach the same objectives as WfMSs: task coordination, execution guidance, traceability. In this article, we describe how to transform Business Process Model and Notation (BPMN) process models into Process Checklists. We also present extensive evaluations of this approach both in the academic and in the business domain.