Causes
- some objects not defined other than through their representations, and no standards in place
- inadequate and/or inconsistent representation of domain objects e.g. lack of support for special objects, e.g., complex faults
- lack of uniform co-ordinate systems transformation service that can handle full range of temporal and spatial scales and resolutions required
- i.e., basinÞfieldÞreservoirÞcompletion zoneÞpores
eons Þfield lifecycleÞwell lifecycleÞwell testÞimpulse response