Medical information is communicated between different entities. Personalized models of peoples' understanding of a medical field are created. Role information is used to assign user-appropriate ontologies. More information than mere role may be used for assigning ontologies, such as information on past medical history. The concepts and relationships in different ontologies may be linked, providing a translation from one personalized model to another. The terminology with similar or the same concepts and/or relationships is output for a given user based on their model.