This part of ISO 17356 gives the OSEK/VDX specifications for binding the OS (operating system), COM (communications) and NM (network management) of the open interface for embedded automotive applications. Its purpose is to prevent divergences from those ISO 17356 specifications — given in ISO 17356-3, ISO 17356-4 and ISO 17356-5 — by making it possible to refer to a single document. It specifies the variables (error codes, status types, etc.) programmable by the user to ensure that implementation of OS, COM and NM are coherent between each other.