A base type is the core object of Asset Management in CentraSite. A base type, or sometimes referred to as a parent type, in an object-oriented architecture, is an object type from which other types are derived. It facilitates the creation of other types that can reuse the properties implicitly inherited from the base type. In addition, a user can extend base type functionality by adding or overriding properties relevant to the derived (sub) type.

For example, the Service object type is the base (parent) type for sub (derived) types such as REST Service, XML Service, Virtual Service, Virtual REST Service, and Virtual XML Service.