Chapter Review

In this chapter you:

Used the Diagrammer to create a diagram showing the entity relationships in your application
Added new nodes to the diagram for the Task and Employee entities
Specified the attributes of the Task entity, and inherited from pattern library fields to define their properties
Inherited from the pattern library entities EditDetail and RelationalTable to provide database access and user interface functions for Task and Employee
Inherited from OwnedCascade for the Task entity to specify that each task record belongs to a Project record in your database
Generated and built the Employee entity’s database table and the inherited functions, and added some sample data

This chapter introduced the following patterns:

	Pattern	Description
	FIELDS/Status	A data field with a group of predefined values.
	FOUNDATION/ReferredTo	Provides a function that lets you select from a list of existing records to fill in a foreign key field in a dialog.
	FOUNDATION/OwnedCascade	An abstract entity, used for the child part of a parent/child relationship, which provides cascade deletion.

This chapter introduced the following triples:

Triple	Description
ENT described by DGM	Associates a diagram object with the source entity.
ENT owned by ENT	Defines a parent/child relationship between two entities.
ENT refers to ENT	Specifies that one entity references another.
ENT replaces ENT ...by ENT	Replaces an abstract entity with a real entity in your application.