POSIX.1-2008 defines a standard operating system interface and environment, including a command interpreter (or "shell"), and common utility programs to support applications portability at the source code level. It is intended to be used by both application developers and system implementors.
To describe a process for developing user Open Environment (OSE) profiles, as opposed to standardized profiles. The guide shall include a framework for documenting user requirements, related information technology services, a transition plan, conformance testing and consideration planning considerations, and examples of user organization OSE profiles.