Define Interchangeability Codes

Explanation

This activity is used to define interchangeability codes which are used when defining position alternates and template alternates against the template structures. For each interchangeability code, a rule must be selected in order to define what is to be performed. Interchangeability rules are used when a part or a serial is installed in a serial structure.There are five predefined interchangeability rules.

Interchangeability Rule Description
One Way Interchangeable The old part number may be used as the replacement, but only where the old part number was installed. A new part number is an acceptable replacement for either an old or new part number. Example: Part number A is the prime installed part of a certain position in the structure, and part B is a valid alternative. With this rule you can replace part A with part A, and you can replace part A with part B, but you cannot change back to part A from part B.
Two Way Interchangeable An old or new part number may replace either an old or new part number when one of the parts is removed. Example: Part number A is the prime installed part of a certain position in the structure, and part B is a valid alternative. With this rule you can replace part A with part A, you can replace part A with part B, and you can change back to part A from part B. You can also replace part B with part B.
Not Interchangeable When a part number is removed, it cannot be replaced with the part number defined as not interchangeable. Example: Part number A is the prime installed part of a certain position in the structure and part B is defined as not interchangeable. With this rule you cannot replace part A with part B.
Interchangeable as a Set Replacing the entire quantity used in one installation. This rule only applies to structure positions where the quantity is higher than 1, and it defines interchangeability for the entire quantity.
Qualified Interchangeable To be used when the other four rules do not apply. This rule will be handled in the same way as the interchangeability rule Two Way Interchangeability, but each replacement will require an approval before the installed alternate is considered usable.

 

Prerequisites

N/A

System Effects