Relationship Types and Collection Types

Tools sometimes manipulate sets of relationships as a single unit; these sets are called relationship collections. The Type Information Model lets you describe collection types, templates to which these relationship collections must conform.

The following topics describe relationship types and collection types:

• Object Collections vs. Relationship Collections
  
  
• Each Relationship Is in Two Collections
  
  
• Collections Conform to Collection Types
  
  
• Minimum and Maximum Collection Size
  
  
• Each Relationship Type Has Two Attendant Collection Types
  
  
• Origin and Destination
  
  
• Naming and Unique-naming Collections
  
  
• Sequenced Collections