A. because the OTM presentation layer, the application processing layer, and the data management layers are logically separate processes

B. because OTM's data is based on whether it is Master data, Static data, or Transactional data

C. because OTM supports third party application integrations (PCMiler, Rand McNally, etc.)

D. because it supports the tiered domain structure, from Public, to Parent, to Child, to grandchild domain levels