RuleML    (3FWS)

RuleML is a unifying family of XML-serialized rule languages spanning across all industrially relevant kinds of Web rules. As a research-based language family, RuleML acts as the connector between RIF and Common Logic. As an industry-focused de facto standard, RuleML has become the overarching specification of Web rules crosss-fertilizing with corresponding OMG specifications (mainly SBVR, PRR, and API4KB) and constituting the foundation of an OASIS specification (LegalRuleML). Through its participation in SWRL and SWSL, RuleML has already accommodated and extended other rule languages, building interoperation bridges between them. The current Specification of RuleML is Version 1.0.    (3UOY)

See: http://ruleml.org    (3FWT)