Journal
SOFTWARE AND SYSTEMS MODELING
Volume 14, Issue 3, Pages 1081-1103Publisher
SPRINGER HEIDELBERG
DOI: 10.1007/s10270-013-0356-2
Keywords
Business process management; Declarative business process models; Modularization; Understandability; Cognitive psychology
Categories
Funding
- Austrian Science Fund (FWF) [P23699-N23]
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Hierarchy has widely been recognized as a viable approach to deal with the complexity of conceptual models. For instance, in declarative business process models, hierarchy is realized by sub-processes. While technical implementations of declarative sub-processes exist, their application, semantics, and the resulting impact on understandability are less understood yet-this research gap is addressed in this work. More specifically, we discuss the semantics and the application of hierarchy and show how sub-processes enhance the expressiveness of declarative modeling languages. Then, we turn to the influence of hierarchy on the understandability of declarative process models. In particular, we present a cognitive-psychology-based framework that allows to assess the impact of hierarchy on the understandability of a declarative process model. To empirically test the proposed framework, a combination of quantitative and qualitative research methods is followed. While statistical tests provide numerical evidence, think-aloud protocols give insights into the reasoning processes taking place when reading declarative process models.
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