Rule Interchange on the Web Harold Boley1, Michael Kifer2, Paula-Lavinia P˘atrˆanjan3, and Axel Polleres4 1 University of New Brunswick, Faculty of Computer Science Institute for Information Technology - e-Business, NRC 46 Dineen Drive, Fredericton, Canada
[email protected] http://www.cs.unb.ca/ boley/ 2 State University of New York at Stony Brook Department of Computer Science Stony Brook, New York 11794-4400, USA
[email protected] http://www.cs.sunysb.edu/ kifer/ 3 University of Munich, Institute for Informatics Oettingenstr. 67, D-80538 M¨unchen
[email protected] http://www.pms.ifi.lmu.de 4 Digital Enterprise Research Institute National University of Ireland, Galway
[email protected] http://www.polleres.net/ Abstract. Rules play an increasingly important role in a variety of Se- mantic Web applications as well as in traditional IT systems. As a univer- sal medium for publishing information, the Web is envisioned to become the place for publishing, distributing, and exchanging rule-based knowl- edge. Realizing the importance and the promise of this vision, W3C has created the Rule Interchange Format Working Group (RIF WG) and chartered it to develop an interchange format for rules in alignment with the existing standards in the Semantic Web architecture stack. However, creating a generally accepted interchange format is by no means a trivial task. First, there are different understandings of what a “rule” is. Researchers and practitioners distinguish between deduction rules, nor- mative rules, production rules, reactive rules, etc. Second, even within the same category of rules, systems use different (often incompatible) semantics and syntaxes.