1003.1-2001/Cor 1-2002 is a technical corrigendum for the Portable Operating System Interface (POSIX(TM)) standard, issued to clarify and correct the 1003.1 specification. It supports more consistent interpretation of operating system interface requirements, which matters for software portability, conformance work, and specification accuracy. For teams working with POSIX-based environments, this document helps align implementation details with the intended rules and reduces ambiguity in technical planning and review.

What is 1003.1-2001/Cor 1-2002?

IEEE 1003.1-2001/Cor 1-2002 is a corrigendum to the POSIX technical standard, focused on correcting or refining the base 1003.1-2001 text. In practical terms, it is used to improve the precision of requirements that govern operating system interfaces, system behavior, and portability expectations. This type of document is important when a specification needs careful maintenance, since even small corrections can affect compliance interpretation, implementation choices, and test planning.

Where is 1003.1-2001/Cor 1-2002 used?

This corrigendum is used in software and systems work that depends on POSIX conformance, especially where operating system interfaces must behave consistently across platforms. It is relevant to developers, integrators, and compliance teams reviewing system-level software, command environments, and application portability requirements. In practice, 1003.1-2001/Cor 1-2002 may be consulted during standards-based development, procurement review, or conformance testing for UNIX-like and other POSIX-aligned environments.

Why is 1003.1-2001/Cor 1-2002 important?

Accuracy in a technical corrigendum matters because standards are often used as the basis for design decisions, testing, and contractual compliance. By correcting the underlying POSIX text, 1003.1-2001/Cor 1-2002 helps reduce misinterpretation and supports more reliable implementation of interface requirements. For organizations that depend on portability and specification control, it can lower the risk of nonconforming behavior and make verification more consistent across systems.

• POSIX technical corrigendum
• Corrections to 1003.1-2001
• Operating system interface requirements
• Portability and conformance support
• Reference for implementation review