PARROT is a RIF and OWL documentation service developed Fundación CTIC.
PARROT software modules are licensed under Eclipse Public License - v 1.0, a business-friendly OSS license.
PARROT has been the subject of the following academic publication:
Current practices and perspectives for metadata on web ontologies and rules.
The Semantic Web contains a number of knowledge artifacts, including OWL ontologies, RIF rule sets and RDF datasets. Effective exchange and management of these artifacts demands the use of metadata and prompt availability of accurate reference documentation. In this article, we analyze the current practices in metadata usage for OWL ontologies, and we propose a vocabulary for annotating RIF rules. We also introduce a software tool --Parrot-- that exploits these annotations and produces reference documentation for combinations of ontologies and rules.
Carlos Tejo-Alonso, Diego Berrueta, Luis Polo and Sergio Fernández: Current practices and perspectives for metadata on web ontologies and rules. In: International Journal of Metadata, Semantics and Ontologies (IJMSO). Download the article in PDF.