In this paper, the authors will show two prototypes based on the BRMS (Business Rule Management System) WODM, the OWL plug-in and the change-management plug-in. The OWL plug-in enables authoring and executing business rules over OWL ontologies. It consists of importing OWL ontologies into WODM and using the all the functionalities offered by this BRMS to author and execute rules. The change-management plug-in enables the evolution of business rules with respect to the ontology changes. This component, implemented basically using OWL ontology and rules, detects inconsistencies that could be caused by an ontology evolution and proposes solution(s), called repair, to resolve them.