1. A method comprising: storing an ontology map comprising mappings of one or more first link types of a first ontology to one or more second link types of a second ontology, wherein each link of the one or more first link types connects two or more objects of the first ontology, and wherein each link of the one or more second link types connects two or more objects of the second ontology; receiving a set of one or more database changes that were made using the first ontology and comprising a change involving one or more first links of the one or more first link types; based at least in part on the ontology map, incorporating the set of one or more database changes into a set of data that is organized according to the second ontology, at least in part by causing a change involving one or more second links of the one or more second link types; wherein the method is performed by one or more computing devices.