RuleML(ID:7648/)

Rule markup language 

• The Rule Markup Initiative Rules in (and for) the Web have become a mainstream topic since inference rules were marked up for E-Commerce and were identified as a Design Issue of the Semantic Web, and since transformation rules were put to practice for document generation from a central XML repository (as used here). Moreover, rules have continued to play an important role in AI shells for knowledge-based systems and in Intelligent Agents, today both needing a Web interchange format, and such XML/RDF-standardized rules are now also usable for the declarative specification of Web Services.
  
  The Rule Markup Initiative has taken steps towards defining a shared Rule Markup Language (RuleML), permitting both forward (bottom-up) and backward (top-down) rules in XML for deduction, rewriting, and further inferential-transformational tasks. The initiative started during PRICAI 2000, as described in the Original RuleML Slide, and was launched in the Internet on 2000-11-10. Besides the previous XML-only RuleML and the current XML/RDF-combining RuleML, there is also an approach towards an RDF-only RuleML. Complementary efforts consist of the development of (Java-based) rule engines such as jDREW and Mandarax RuleML, as well as XSB-RDF RuleML. There now exists a RuleML design and a Version 0.85 system of DTDs-Schemas for positional-slotted RuleML sublanguages including Object-Oriented RuleML (OO RuleML). Recent efforts also went into defining MOF-RuleML: The Abstract Syntax of RuleML as a MOF Model.