Mappings for Government Data Products
DTED (Digital Terrain Elevation Data)
- Covers all NGA DTED Levels
- Various types of elevation values plus quality metadata
DFAD (Digital Feature Analysis Data)
- Covers all DFAD features and attribution
- Maps FIDS to classification entries plus some potential attribute values; plus DFAD-associated attributes mapped
- Based on NGA experimental mapping to FACC, designed for a potential future DFAD-replacement product
- EDCS allowed additional data coding flexibility
- Goal of loss-less exchange required fixing mapping “dropouts”
- Useful as starting point for “in-house” coding standards for many IG-oriented database developers
- Frequent users of DFAD due to wide coverage/availability