Evaluate revision rules for read access

Understand how Teamcenter evaluates revision rules in conjunction with read access permissions when configuring product structures.

By default, Teamcenter applies a revision rule to configure a product structure before it applies an access rule. As a result, if a higher revision rule entry configures a particular revision of an item and the user has no read access to this revision, the structure line in Structure Manager shows an UNREADABLE stub entry.

You can optionally configure Teamcenter to continue evaluation when expanding the structure against the revision rule until it encounters a revision of the item to which the user has read access. However, if it finds no accessible item revision for any of the entries, it shows an UNREADABLE stub, as before. To allow Teamcenter to continue revision rule evaluation by making read access checks in this way, set the PSE_check_read_access_for_Rev_Rule_entry preference to TRUE. Structure Manager shows the next item revision to which you have access. If this preference is set to FALSE, evaluation stops when the first inaccessible configured item revision is encountered.

Unreadable lines may be shown or hidden, depending on the setting of the BOM_hide_unreadable_lines site preference:

• If set to None (default), unreadable lines are shown and labeled as UNREADABLE.

• If set to All, unreadable lines are hidden.

• If set to a group name, unreadable lines are hidden from users in the specified group.

• If the user has no access to an item or GDE (generic design element) in an imprecise structure, the line is not displayed.

• If the user has access to the item in a precise structure but not the configured item revision, the line is displayed.

• If the BVR is precise and the user has no access to the item revision, the line is not displayed.

• If the BOM has only unreadable lines, the parent is shown as a leaf node.

Unreadable lines do not participate in roll ups, configuration, BOM compare, accountability checks, duplication, import/export, and searches. Hidden lines cannot be used as global alternates or substitutes.

You can use any of the following revision rule entries to show configured item revisions to which the user has read access:

• Latest Working
• Status
• Latest Revision
• Override

You can include more than one of these entries in the same revision rule to find accessible item revisions.

This behavior applies only to imprecise structures and does not affect the evaluation of precise structures. Similarly, there is no effect if you configure a structure by unit number or date effectivity.