DocumentCode :
2250255
Title :
Expressing model constraints visually with VMQL
Author :
Störrle, Harald
Author_Institution :
Dept. of Inf. & Math. Modeling, Tech. Univ. of Denmark, Lyngby, Denmark
fYear :
2011
fDate :
18-22 Sept. 2011
Firstpage :
195
Lastpage :
202
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.
Keywords :
Unified Modeling Language; query languages; visual languages; UML model; VMQL; Visual Model Query Language; de facto standard language; model constraint; usability; Computational modeling; Concrete; Context; Unified modeling language; Usability; Visualization; Writing;
fLanguage :
English
Publisher :
ieee
Conference_Titel :
Visual Languages and Human-Centric Computing (VL/HCC), 2011 IEEE Symposium on
Conference_Location :
Pittsburgh, PA
ISSN :
1943-6092
Print_ISBN :
978-1-4577-1246-3
Type :
conf
DOI :
10.1109/VLHCC.2011.6070399
Filename :
6070399
Link To Document :
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