Schema repositories

Rational® ClearQuest® stores schemas in a special type of database called a schema repository.

A schema repository can store multiple schemas; for example, one schema for defect change requests and another schema for feature enhancement change requests. In Figure 1, the schema repository stores Schema A and Schema B.

The schema repository can also include multiple versions of the same schema. A new version is created each time the schema developer makes changes to a schema and checks in the schema. For example, the schema developer might add a field or modify the appearance of a record form. In Figure 1, the schema repository stores three versions of Schema A and two versions of Schema B.
Figure 1. Schema repositories and schemas
A connection or database set with its associated user databases and one schema repository.


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