Expressing Model Constraints Visually with VMQL

Harald Störrle

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    Abstract

    OCL is the de facto standard language for expressing constraints and queries on UML models. However, OCL expressions are very difficult to create, understand, and maintain, even with the sophisticated tool support now available. In this paper, we propose to use the Visual Model Query Language (VMQL) for specifying constraints on UML models. We examine VMQL's usability by controlled experiments and its expressiveness by a representative sample. We conclude that VMQL is less expressive than OCL, although expressive enough for most of the constraints in the sample. In terms of usability, however, VMQL is superior to OCL, although the experimental evidence we present here is not as compelling as the one we presented when comparing VMQL and OCL on model querying.
    Original languageEnglish
    Title of host publication2011 IEEE Symposium on Visual Languages and Human-Centric Computing (VL/HCC)
    PublisherIEEE
    Publication date2011
    Pages195-202
    ISBN (Print)978-1-4577-1246-3
    DOIs
    Publication statusPublished - 2011
    Event2011 IEEE Symposium on Visual Languages and Human-Centric Computing - Pittsburgh, PA, United States
    Duration: 18 Sep 201122 Sep 2011
    http://www.cs.cmu.edu/~vlhcc2011/

    Conference

    Conference2011 IEEE Symposium on Visual Languages and Human-Centric Computing
    CountryUnited States
    CityPittsburgh, PA
    Period18/09/201122/09/2011
    Internet address
    SeriesIEEE Symposium on Visual Languages and Human-Centric Computing. Proceedings
    ISSN1943-6092

    Bibliographical note

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    Cite this

    Störrle, H. (2011). Expressing Model Constraints Visually with VMQL. In 2011 IEEE Symposium on Visual Languages and Human-Centric Computing (VL/HCC) (pp. 195-202). IEEE. IEEE Symposium on Visual Languages and Human-Centric Computing. Proceedings https://doi.org/10.1109/VLHCC.2011.6070399