Entity, Attribute, and Key_Group Diagram

This diagram shows the structure of Entities and Attributes and their associated Key_Groups and Key_Group_Members. This diagram makes the following assertions:

• Attributes are owned by Entities
• Key_Groups are owned by Entities
• Key_Group_Members are owned by Key_Groups
• Key_Group_Members are linked to their associated Attribute using the Attribute_Ref property
• Key_Group_Members are linked to their parent Key_Group_Member using the Parent_Key_Group_Member_Ref property
• Attributes are linked to their parent Attribute using the Parent_Attribute_Ref property

Entity, Attribute, and Key_Group Diagram--UML Notation:

Entity, Attribute, and Key_Group Diagram--IDEF1X Notation: