FINE-GRAINED PERMISSION MODELS FOR ONTOLOGY DATA

A system for enabling granular access control over ontology data and related methods are disclosed. The system is programmed to receive data source updates from data sources having respective sets of permissions for access control, transform the data source updates to changes to an ontology, and control access to the ontology based on the sets of permissions. The system is further programmed to receive a specification of one or more rules referencing attributes of user accounts or properties of ontology entities and corresponding one or more lists of permissions. The system is programmed to then enforce a security policy based on the specification to further control access to the ontology.