This diagram illustrates the relationships between an element and its associated extended information. The related information is accessed through the collections owned by the element (eg. Scenarios and Tests). It also includes a full description of the element object (the basic model structural unit).
The Element package contains information about an element and its associated extended properties such as testing and project management information. An element is the basic item in an Enterprise Architect model. Classes, Use Cases and Components are all different types of UML element.