From W3C Wiki
- Knowledge change and evolution is a key issue in the HCLS areas. Especially there is a need for the use of old data against a new ontology and the use of new data against an ontology. As an ontology evolves so do the mappings of that ontology to the underlying database schemas.
- Issues such as versioning, history and diffs, provenance, dependency propagation and ontology lifecycles are of critical importance in the HCLS areas.