Define Referenced Modifications

This activity is used to define references between modifications for part revisions. The reference types you may define for a part revision are Mandatory, Info, Exclude, and Supersedes. For an explanation of the different reference types, see Modification Details/References. You can manually modify the reference data when the modification has a status of Preliminary. When the modification's status is set to Active, you cannot manually change all reference data any longer, but you may add and remove references by using menu options. For more information on how to add and remove references for an active modification, please see Add New Modification Reference and Remove Modification Reference.

References are defined per part revision that is assigned to the modification because different modifications apply to different part revisions, and it must therefore be possible to define different references based on the part revision. If the same references apply for several part revisions, use the Copy Modification menu option to copy the references.

Prerequisites

The referenced modifications must exist and be assigned to the part number.

System Effects

• If the reference type is set to Mandatory, it is not possible to comply with the modification before the referenced modification is complied with.
• If the reference type is set to Excludes, it is not possible to comply with the modification if the referenced modification is complied with.
• Setting the reference type to Information has no system effects.
• The system takes special action when setting a modification with Supersedes references to Active:

• A Superseded By reference is inserted in the referenced revision, and the superseded modification's status is automatically set to Obsolete.
• All pending maintenance events for modification(s) set to Obsolete are removed.
• The Obsolete modification revision can no longer be complied with.
• If only one superseded record exists on the modification to activate, the Supersede Rule field (on the Definition tab) is evaluated when assigning serials.

• If the reference type is set to Supersedes, and if more than one Supersedes record exists, a warning message appears stating that the assignment process must be followed up manually.

Window

Modification Details

Related Window Descriptions

Modification Details/References

Procedure

1. Open the Modification Details window and query for the modification revision for which you want to register references.
2. Click the References tab.
3. Enter values for the Referenced Modification and Referenced Revision fields. This is the modification code and revision that holds the reference. You may select it from the List of Values.
4. Select an appropriate Reference Type (Mandatory, Info, Exclude or Supersedes).
5. Click Save.