José Júlio Alferes, Ricardo Amador:
r3 - A foundational ontology for reactive rules.
Abstract
In this paper we present the r3 ontology, a foundational
    ontology for reactive rules, aiming at coping with language heterogeneity
    at the rule (component) level. This (OWL-DL) ontology is at a low
    (structural) abstraction level thus fostering its extension. Although
    focusing on reactive rules (reactive derivation rules not excluded), the
    r3 ontology defines a vocabulary that allows also for the definition of
    rule (component) languages to model other types of rules like production,
    integrity, or logical derivation rules. 
      
URL:
http://rewerse.net/publications/rewerse-publications.html#REWERSE-RP-2007-084
@inproceedings{REWERSE-RP-2007-084,
	author = {Jos\'{e} J\'{u}lio Alferes and Ricardo Amador},
	title = {r3 - A foundational ontology for reactive rules},
	booktitle = {Proceedings of 6th International Conference on Ontologies, DataBases, and Applications of Semantics, Vilamoura, Algarve, Portugal (27th--29th November 2007)},
	year = {2007},
	volume = {4803},
	series = {LNCS},
	pages = {933--952},
	url = {http://rewerse.net/publications/rewerse-publications.html#REWERSE-RP-2007-084}
}