Dominik Bork, Antonio Garmendia, Manuel Wimmer,
"Towards a Multi-Objective Modularizations Approach for Entity-Relationship Models"
, in CEUR-WS.org: ER Forum, Demo and Posters 2020, 39th International Conference on Conceptual Modeling ER 2020, Vienna, Austria, November 3-6, 2020, Vol. 2716, Seite(n) 45-58, 11-2020
Towards a Multi-Objective Modularizations Approach for Entity-Relationship Models
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ER Forum, Demo and Posters 2020, 39th International Conference on Conceptual Modeling ER 2020, Vienna, Austria, November 3-6, 2020
Legacy systems and their associated data models often evolve into large, monolithic artifacts. This threatens comprehensibility and maintainability by human beings. Breaking down a monolith into a modular structure is an established technique in software engineering. Several previous works aimed to adapt modularization also for conceptual data models. However, we currently see a research gap manifested in the absence of:(i)a flexible and extensible modularization concept for Entity Relationship (ER) models; (ii )of openly available tool support; and (iii) empirical evaluation. With this paper, we introduce a generic encoding of a modularization concept for ER models which enables the use of meta-heuristic search approaches. For the efficient application we introduce the ModulER tool. Eventually, we report on a twofold evaluation: First, we demonstrate feasibility and performance of the approach by two demonstration cases. Second, we report on an initial empirical experiment and a survey we conducted with modelers to compare automated modularizations with manually created ones and to better understand how humans approach ER modularization.