Ontology Sharing
Create a committee to define everybody’s terms
- Takes many years, until people are worn out
- Ignored when changes make deviation necessary
Get all terms and put them into large model
[ Cyc, UMLS, Federated Schemas, . . . ]
- Can be rapid
- Provides broad integration
- Ignores conflicts
- Hard to maintain (requires committee)
Keep all Terms distinct, except where sharing
- Requires initial effort
- Complex system view
- Empowers participants
- Scalable with many participants