## Controlling document revisions

SSA ECM's advanced revision control ensures that only the correct product information is accessed, and that design changes are entered to production only after the changes are approved. Previous revisions are securely stored for future access.

SSA ECM provides a protected area (vault) for secure storage of released documents. After a document is checked in, the document cannot be accessed for change without first performing a check-out operation.

When a document is checked in, the document's status changes to RELEASED and no further changes can be made to it. Only documents whose status is UNDEFINED can be checked in. See Check in a document.

Only users with a user type of Approver and above can perform a check-in.
See User roles and authorizations.

When a document is checked out, the document's status changes to UNDER CHANGE, and a new document opens with another revision number and the status UNDEFINED. Only documents with RELEASED status can be checked out. See Check out a document.

Only users with a user type of Designer and above can perform a check-out.

You can undo the check-in and check-out operations, subject to certain restrictions. For more information, see:

- Undo the check-in operation.
- Undo the check-out operation.

SSA ECM 8.0 SP1 User's Guide © Copyright 2004 SSA Global Technologies (Israel), Ltd.