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Obtaining a Copy of the Standard
The html version of the 2013 edition is freely available on the web, more information and registration are here.
A PDF copy of the full specification is also available at the same location or from IEEE.
Defect Reports/Bug Reporting
To submit a bug report against the specifications please use the Mantis online defect tracker at http://austingroupbugs.net
Interpretations of the standard resulting from defect reports are held in this repository.
Join the Review Group
We recently completed the first technical corrigendum to the 2008 standard and are working on maintenance towards the second technical corrigendum. To actively work on the Austin Group documents you need to join the austin-group mailing list. See the mailing list page for more information.
Recent Approval Status
6 February 2013: IEEE approved Technical Corrigendum 1.
25 October 2012: The Open Group approved Technical Corrigendum 1.
August 2012: ISO Approves Technical Corrigendum 1.
September 15 2009: ISO publishes ISO/IEC 9945:2009
December 2008: ISO approves ISO/IEC 9945
September 26 2008: IEEE approves IEEE Std 1003.1-2008
July 24 2008: The Open Group approves the Base Specifications Issue 7(More....)
See the UNIX® certified products list.
See the POSIX®: Certified by IEEE and The Open Group certified products list.
Group materials are kept in the document register.Some of the materials are in PDF format, reader software is available. The group also maintains a set of links to other related standards materials.
We're currently in maintenance mode, working towards the first technical corrigendum of the 2008 revision. We meet regularly at least bi-weekly by teleconference. There is a freephone number to join the teleconference. You need to join the mailing list to get a login id.
The Austin Common Standards Revision Group (CSRG) is a joint technical
working group established to develop and maintain the core
open systems interfaces that are the POSIX® 1003.1 (and former 1003.2)
standards, ISO/IEC 9945 parts 1 to 4, and the
core of the Single UNIX Specification.
The approach to specification development is "write once, adopt everywhere", with the deliverables being a set of specifications that carry the IEEE POSIX designation, The Open Group's Technical Standard designation, and the ISO/IEC designation. The current set of specifications is simultaneously ISO/IEC 9945, IEEE Std 1003.1 and forms the core of the Single UNIX Specification.
This unique development combines industry led efforts and the formal standardization activities into a single initiative, and includes a wide spectrum of participants. The group is free and open to participate in and features a balanced set of interest groups including commercial companies, influential figures from the open source community, liaisons from other standards groups, educational and government users, and user groups.
Working with the Open Source community
The group includes developers from the Open Source community. As part of acknowledging their valuable input the copyright holders have made several grants relating to use of the documentation in those projects. Some of these are listed below:
Other projects that have received permission grants related to use of documentation include Gunnar Ritter's Heirloom Toolkit and other tools, Joerg Schilling's pax and find, Jens Schweikardt book, and the ISPRAS Linux testing project.
How to get Involved
Read a backgrounder on the scope, audience and purpose for this standard.
Read the Frequently Asked Questions file.
The group is chaired by Andrew Josey from The Open Group. The Open Group manages the day to day running of the group providing the chair, the editor and email/web facilities.
Committee Draft Development Procedures
A set of Committee Maintenance Procedures for the Approved Standard are available for information (summary diagram).
The group has adopted the Aardvark comment format for change requests and defect reports. This allows for collation of change requests in order for production of a change request report to be considered at a review meeting.
Joint Working Group Procedures
JDOCS Procedures for Operation of the group are available.
Invitation To Participate
Active participants may also wish to apply for organizational membership of The Open Group. The Open Group is pleased to waiver the fees for those actively supporting this activity. (please note this is for organizations only). If your organization is already a member or you are an individual contact Andrew Josey directly for assistance.