From DMs of the Environment … to a DRM for the Environment
SEDRIS DRM Based Approach:
- One DRM supports representations of both views
- Unambiguous representation aids in mapping between a native DM and the DRM
- “Value added” data may be fully integrated with both views
Common DM Based Approach
- Different native data models
- Difficult to map between them
- “Value added” data needed for interchange is external to both models