1
The OSI model is a framework for defining communications protocols. It
consists of seven layers of protocols that range from low level methods for
dealing with a physical communications medium, to high level methods for
dealing with the communications needs of user applications. Developed by the
International Standards Organization (ISO), specific protocols have been
designed to implement the functionality specified by the OSI model.
2
International Telegraph and Telephone Consultative Committee: This
organization is part of the United National International Telecommunications
Union (ITU) and is responsible for making technical recommendations about
telephone and data communications systems.
3
International Organization for Standardization (ISO). A voluntary,
non-treaty organization founded in 1946 which is responsible for creating
international standards in many areas, including computers and communications.
Its members are the national standards organizations of the 89 member
countries, including ANSI for the U.S.
International Electrotechnical Commission (NEC).
The international standards and
conformity assessment body for all fields of electrotechnology. IEC and ISO
technical committees collaborate in fields of mutual interest.
4
The ITU is an international organization within which governments and the
private sector coordinate global telecom networks and services. It also
develops standards to facilitate the interconnection of telecommunication
systems on a worldwide scale regardless of the type of technology used.
5
A management architecture framework developed by the International
Telecommunication Union (ITU), which provides an environment for interfacing a
telecommunication network with computer systems to provide different
management functions at several different levels. The framework allows the
management of business information between different components (operations
systems, communication equipment, network and computer systems) and provides
control of service operations and information flow.
