W3C published the Second Edition of the Rule Interchange Format (RIF). RIF was developed through a joint effort of members of the Business Rules, Semantic Web, and Logic Programming communities. It allows rules systems to be connected together for highly-structured knowledge to be accurately exchanged as explained in RIF Use Cases and Requirements. The Second Edition includes editorial improvements and a number of small corrections to the original specification, along with a new RIF Primer.
The six new standards are:
- RIF Core Dialect (Second Edition), which provides a standard, base level of functionality for interchange,
- RIF Basic Logic Dialect (Second Edition) and RIF Production Rule Dialect (Second Edition), which provide extended functionality matching two common classes of rule engines,
- RIF Framework for Logic Dialects (Second Edition), which describes how to extend RIF for use with a large class of systems,
- RIF Datatypes and Built-Ins 1.0 (Second Edition), which borrows heavily from XQuery and XPath for a set of basic operations,
- and RIF RDF and OWL Compatibility (Second Edition), which specifies how RIF works with RDF data and OWL ontologies.
Along with these standards, the RIF Working Group published today six related documents: RIF Overview (Second Edition),RIF Use Cases and Requirements (Second Edition), RIF Test Cases (Second Edition), OWL 2 RL in RIF (Second Edition), RIF Combination with XML data (Second Edition), and RIF In RDF (Second Edition).