You can increase your modeling efficiency by extending entities. Data extensibility enables you to leverage data when building new, similar entities. When you extend one entity from another, the target entity inherits all of the data elements defined for the extended entity. For example, you can extend orders and tasks.
Inherited data elements are read-only. If you extend an entity that includes structured data elements, you can add any number of additional simple and structured child elements. In Design Studio, you can extend conceptual model entities, tasks, and orders.
For more information, see the following topics: