Some items in the library are labeled as member documents (e.g., Download PDF Member Edition). But what constitutes membership of The Open Group?
Access to members' publications requires you to have an account associated with a member organization and also a recognized corporate email address for that organization. You can check your associated access rights at https://www2.opengroup.org/ogsys (my Roles) — to access a member document you need the role "MEMBER".
The list of member organizations is at http://reports.opengroup.org/membership_report_all.pdf.
If your profile at The Open Group website does not indicate the MEMBER role but you work for a member organization, please ensure you have registered using your company email address as the business contact and added your organization name in the Primary Organization box. You can update your profile here.