A Knowledge Object may be characterized in different forms, corresponding to different perspectives of the object. In the same sense, knowledge of a particular domain can be organized in different interconnected ontologies. The research on ontology modularization has advanced in proposing formalisms and tools to extend ontologies with inter-ontology connectors. Tools are needed to manipulate these new connectors. Existing tools are platform dependent, which presents problems of adaptability, portability and reusability. This paper presents the design and implementation of a Specific Domain Language for Handling Modular Ontologies, based on a model driven architecture (MDA).