Semantic Interoperability

• Content-based Searches

  • Science goal driven queries instead of SQL

• Data Understanding (Domain Context)

  • Human Interface тАФ> S/W Mapping тАФ> Object-oriented Mapping

• Data Annotation for Correct Interpretation

  • Measured parameters, units, quality, range of validity
  • Algorithm and calibration used, pedigree
  • Theoretical models applied

• Data Organization

  • File directory structure
  • Database schema

Need Information in both Machine-understandable and Human-understandable form