System.Logical.Object.Structural
uDescribe the static nature of objects in the
system.
ØWhat are the objects of interest?
ØWhat are the attributes/associations associated with
them?
uUML Class diagrams (with some extensions) are better suited for structural modeling than ERDs.
uStructural rules include a much broader range of information than that ERDs:
1.Derived attributes
2.Objects defined using other objects (to generate
database views)
3.Audit, security, and history requirements
4.Default object display
5.Triggering events based on Insert, Update, and Deletion
of objects or attributes