The n:1 (or 1:n) relation type links several objects to one object. It means that many entity instances from the related entity can reference any one entity instance from the primary entity.

Note: n:1 and 1:n relations are basically the same from the structural point of view. The only difference is in the default position of the source and target object types.

For n:1 (1:n) relation type, there is usually the following sequence of wizard pages available:

• Page 1: Enables you to select 2 object types which you want to work with.
• Page 2: Deals with the cardinality selection.
• Page 3: Deals with the relation mandatoriness.
• Page 4: Enables you to specify names of the relation attributes.
• Page 5: Generates the SQL script.
• Page 6: Enables you to set a foreign key.

• Page 7: The summary of the process.

Note: The number of pages which the wizard consist of largely depends on the type of relation being created. For instance, creating a transient relation requires less steps than creating an m:n relation.