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Open-system environment (OSE) reference model (RM) or ''OSE reference model'' (OSE/RM) is a 1990 reference models for enterprise architecture. It provides a framework for describing open system concepts and defining a lexicon of terms, that can be agreed upon generally by all interested parties. 〔 This reference model is meant as environment model, complementary to the POSIX architecture for open systems. It offers an extensible framework that allows services, interfaces, protocols, and supporting data formats to be defined in terms of nonproprietary specifications that evolve through open (public), consensus-based forums.〔ACM Sigsoft (1993) 15th International Conference on Software Engineering, May 17-21, 1993''. p.349〕 This reference model served in the 1990s as basic building block of several technical reference models and technical architecture. In 1996 this reference model was standardized in the ISO/IEC TR 14252 titled "Information technology -- Guide to the POSIX Open System Environment (OSE)".〔Wolfgang Kresse, Kian Fadaie (2004) ''ISO Standards for Geographic Information''. p.72〕 == History == The development of the open-system environment reference model started early 1990s by the NIST as refinement of the POSIX (Portable Operating System Interface) standard. POSIX is a standard for maintaining compatibility between operating systems, and addresses interoperation for communications, computing, and entertainment infrastructure. It's developed started late 1980s by the POSIX Working Group 1003.0 of the Institute of Electrical and Electronics Engineers (IEEE).〔 The NIST hosted workshops and conducts other support activities to assist users in addressing open systems requirements, preparing for the use of new technology, and identifying the international, national, industry and other open specifications that are available for building open systems frameworks, such as the government's applications portability profile for the open-system environment. NIST sponsors the semiannual Users' Forum on Application Portability Profile (APP) and Open System Environment (OSE) to exchange information and respond to NIST proposals regarding the evaluation and adoption of an integrated set of standards to support the APP and OSE. The quarterly Open Systems Environment Implementors' Workshop (OIW), co-sponsored by NIST and the Institute of Electrical and Electronics Engineers (IEEE) Computer Society, provides a public international technical forum for the timely development of implementation agreements based on emerging OSE standards.〔(STANDARDS FOR OPEN SYSTEMS: MORE FLEXIBILITY FOR FEDERAL USERS ) NIST Bulletin 1996. Accessed 13 Dec 2008.〕 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Open-system environment reference model」の詳細全文を読む スポンサード リンク
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