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POSIX® Certified by IEEE and The Open Group" — a program jointly developed and operated by IEEE and The Open Group — certifies products to the 2003 edition of IEEE 1003.1™-2001, “Standard
for Information Technology - Portable Operating System Interface (POSIX),” which
incorporates the IEEE 1003.1 Corrigendum. The POSIX® standard defines a
set of fundamental services needed for the construction of portable application
programs. POSIX certification complements certifications for other products
that draw on the POSIX standard, such as those for the UNIX® system, the
COE Platform and LSB™.
Although coined to refer to the original IEEE standard 1003.1-1988, today
POSIX® refers to a family or set of IEEE and ISO standards that define
an interface between programs and operating systems. Heavily influenced by
the UNIX(R) system, the latest revision of IEEE 1003.1, Standard for Information
Technology-Portable Operating System Interface, merges with The Open Group's
Base specifications, which comprise the core of the Single UNIX Specification
Version 3.
 Benefits
The program benefits both customers and vendors:
- Suppliers are able to substantiate claims of conformance to POSIX, based
on defined test suites; d evelopers, by defining their programs to conform
to POSIX, have assurance that their software can be easily ported to POSIX-conformant
operating systems; This includes most UNIX systems ( http://www.unix.org/)
- Buyers gain assurance that products they procure meet the standard and
are warranted by the vendor to do so
Under the program, vendor guarantee conformance to specification. This guarantee
ensures that products conform to a specification, remain conformant throughout
the life of the product’s registration, and any non-conformance will
be promptly fixed. All current certified products are listed in the Certified
Products Register.
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