Chapter 10. Two-Entity Shapes
Some shapes involve exactly two entities and some relationships. This chapter describes them.
Two Entities, One Relationship
Some shapes have one relationship between two entities.
One-many shapes
Plain one-many relationship
One-many relationship making a dependent or intersection entity
One-many relationship making a collection entity
One-one shapes
Plain one-one relationship
One-one relationship making a subordinate entity
To-be one-one relationship
Not-to-be one-one relationship
To-be one-one relationship making a subordinate entity
Plain to-be one-one relationship
Plain not-to-be one-one relationship
Not-to-be one-one relationship making a subordinate entity
Many-many shapes
Plain many-many relationship ...
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