scope:

Introduction

Note: Nothing in this standard supercedes applicable laws and regulations.

Note: In the event of conflict between the English and domestic language, the English language shall take precedence. 

Purpose. The purpose of this specification is to define simple, clear and concise meanings of Fit, Form, Function and Interchangeability, in relationship to components, subsystems and systems for both vehicle and powertrain groups. 

Applicability. This standard applies to all phases of vehicle and powertrain development, validation and continuous improvement. 

Remarks. The definitions for Fit, Form, Function and Interchangeability are used to decide when a component, subsystem or system part iteration requires a new part number, to support breakpoint management and traceability of the design change in production environment. Reference GMW15862.