As noted in the CA Datacom/AD Release Notes:
CA Datacom®/AD is the relational database management system used by many CA Technologies products. The CA Datacom®/AD environment is a subset of the CA Datacom product line. CA Datacom®/AD provides for the access and storage of the data of various using products (application products). Thus, providing significant enhancements to performance while ensuring data integrity and allowing concurrent update.
Because new products are added to the suite of those using this repository, or because new features of CA Datacom/AD are added to the base products, we have created this article to help our users more quickly find this information. An internet search for Datacom and "using products" or "base products" should locate this article for your use.