Step 2 - Development of vocabularies:
    
      - Ontologies may be developed by anyone.
 
      - Information providers decide which vocabularies they wish to use.
 
      - Likely scenario:
	  - One or more data providers in a domain use their expertise to develop an ontology.
 
	  - They write and publish a schema for use by others.
 
	  - Many data providers choose to use this schema (it wins the popularity contest).