UDC 004.423.2, DOI: 10.2298/csis0902047M

Model Transformations to Bridge Concrete and Abstract Syntax of Web Rule Languages

Milan Milanović1, Dragan Gašević2, Adrian Giurca3, Gerd Wagner3, Sergey Lukichev3 and Vladan Devedžić1

  1. GOOD OLD AI Laboratory, FON-School of Business Administration, University of Belgrade
    milan@milanovic.org, devedzic@etf.bg.ac.yu
  2. School of Computing and Information Systems, Athabasca University
  3. FInstitute of Informatics, Brandenburg Technical University at Cottbus
    Giurca@tu-cottbus.de, G.Wagner@tu-cottbus.de, lukichev@tu-cottbus.de


This paper presents a solution to bridging the abstract and concrete syntax of a Web rule languages by using model transforma-tions. Current specifications of Web rule languages such as Semantic Web Rule Language (SWRL) or RuleML define their abstract syntax (e.g., metamodel) and concrete syntax (e.g., XML schema) separately. Although the recent research in the area of Model-Driven Engineering (MDE) demonstrates that such a separation of two types of syntax is a good practice (due to the complexity of languages), one should also have tools that check validity of rules written in a concrete syntax with respect to the abstract syntax of the rule language. In this study, we use the REWERSE I1 Rule Markup Language (R2ML), SWRL, and Object Constraint Language (OCL), whose abstract syntax is defined by using metamodeling, while their textual concrete syntax is defined by using ei-ther XML/RDF schema or Extended Backus-Naur Form (EBNF) syntax. We bridge this gap by a bi-directional transformation defined in a model transformation language (ATLAS Transformation Language, ATL). This transformation allowed us to discover a number of issues in both web rule language metamodels and their corresponding concrete syntax, and thus make them fully compatible. This solution also enables for sharing web rules between different web rule languages.

Key words

rules, MDE, syntax, transformations, languages, R2ML, OCL, SWRL

Digital Object Identifier (DOI)


Publication information

Volume 6, Issue 2 (December 2009)
Year of Publication: 2009
ISSN: 1820-0214 (Print) 2406-1018 (Online)
Publisher: ComSIS Consortium

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How to cite

Milanović, M., Gašević, D., Giurca, A., Wagner, G., Lukichev, S., Devedžić, V.: Model Transformations to Bridge Concrete and Abstract Syntax of Web Rule Languages. Computer Science and Information Systems, Vol. 6, No. 2, 47-85. (2009)