POSIX Open System Environment (POSIX OSE)
The Open System Environment in which the standards included are not in conflict with ISO/IEC 9945 and are: – International Standards and Profiles (developed by ISO, IEC, or CCITT) – Regional Standards and Profiles (developed by a group recognized as an official standards body by a regional governmental entity, such as the European Community) – National Information Technology Standards and Profiles (developed by a national standards body recognized as such by ISO, IEC, or CCITT, as appropriate) [POSIX.0].