RDF and MPEG-7
  - Was considered as basis for MPEG-7 in 1999
    
      - Too early
- No standardized schema language
 
- Things have changed
    
      - Growing community experience with RDF
- Powerful ontology definition language is standard (OWL)
 
- Growing interest
    
      - Used for integrating MPEG-7, MPEG-21, Museum ontology
- Ad-hoc group for MPEG-7 Semantic Interoperability