A sub type is any type that inherits properties from any other sub type or base type. A sub type derived from a base type has the same set of attributes as its base type, but has its own set of profiles and properties and adds its own behavior. For example, Service is a base type from which REST Service and the XML Service are derived. REST Service and XML Service have basically the same set of metadata as the Service type, but each represents its own properties (for example, policies and LCMs) than the Service type.

A sub type can also have its own lifecycle model and policies.