When you add a target to a build configuration, or modify an existing target, you can optionally specify a design part to be related to the target.
The following rules are used in descending order to determine how a design part is assigned to a collected item.
If a previous revision of the collected item already exists, the design part for the new revision is the same and is not changed.
If the target item rule in the build configuration has a design part specified, that design part is used for the item.
The design part from the first input to the transition that has a valid part is used.
The design part in the TGT file is used (Openmake projects only).
Regular upload rules are used.