Preliminary Standards

The O-PAS Standard, once fully defined, will allow for construction of safe, reliable, secure process automation systems that are scalable from very small to very large, which do not require system shutdown to perform updates and extensions, and which can be applied to existing systems and to new construction.
Downloading as a member of The Open Group Open Process Automation™ Forum – see here.
Downloading the O-PAS Standard, Version 2.0 Preliminary Standard as a Non-Member
Alternatively, if you are not an employee of a member of The Open Group, you can register to download the O-PAS Standard under license for evaluation or commercial use. The evaluation copy is available for instant download at completion of registration.
Information on the licensing terms, including commercial licensing, is available here.
Note: In order to download publications from the Library, you need an account for The Open Group website. If you are a first-time user register for an account here.

Superseded by C19F

This Preliminary Standard describes a reference architecture that can be used to provide a common taxonomy and basis for Enterprise Architecture for the commercial aviation industry. Note: This document is freely available to members and non-members of The Open Group. In order to download publications from the Library, you need an account for The Open Group website. If you are a first-time user register for an account here.