UNIX 03

UNIX 03

An Open Group specification introduced in 2002 and approved in 2003 that is based on a combination of IEEE POSIX and Version 3 of the Single UNIX Specification. It was the first update to the UNIX Product Standard family since 1997. See UNIX 98, Single UNIX Specification and Open Group.
References in periodicals archive ?
Today Huawei announced that its EulerOS 2.0 operating system for its KunLun mission critical servers has earned UNIX 03 certification from The Open Group.
The x86 architecture and UNIX 03 certification make the KunLun ecosystem more open, allowing KunLun customers to choose from standard operating systems such as Linux, Windows Server, and UNIX.
UNIX 03 defines the requirements for systems compliant with the UNIX system.