This paper takes a look on how components for knowledge-based intelligent systems can be created for reuse. For this purpose, we use production rules as inspiration for a system that uses an ontology description for the method and the domain ontology for the knowledge about the domain the problem takes place in. In this paper we give a description of an approach that hopefully can give insight into such a system. The approach is based on previous work and other scientific publications concerning this field of study. The created ontology models are in no way guaranteed to be useful outside of this example and the approach itself might still need to be improved in the future.