- In RDF, semantic meaning can be formed by considering the connection between proposition or predicate symbols.
- Deductive databases contain tables with some background knowledge.
- OWL provides background knowledge in case of RDF.
- OWL is an XML file having its own schema as an RDF file.
- With respect to Semantic Web, normally people are unhappy with both the input and output as the query complexity increases and even the output returned will not be perfect as desired since the query will be imperfect.
- For integration of structured data in many databases, schema mapping is done between relationships between attributes in databases. For this schema mapping OWL is used.
Preethi
