In discrete production processes, assembly parts are often modified slightly, so they can be used in the manufacture of other similar products. In many cases, the company must keep both the original and modified parts in stock for production purposes. Instead of assigning a new plant number to the modified part, both parts retain the same number, but are assigned different revision levels (for example, original part = revision level "A" and modified part = revision level "B").

If the modification does not affect the inspection of the part, you can use the existing inspection plan to inspect both the original and modified parts.

However, if the new part has to be inspected differently as a result of the modification, you must create a new version of the inspection plan that takes into account the revised inspection procedures. This can be done by assigning a new revision level to the existing plan and making the required changes to this new version of the inspection plan.

In this way, if an order is placed for the material with a revision level, the system automatically selects the appropriate inspection plan when a delivery of new parts is received.