ISO/IEC JTC 1/SC 2 Coded character sets is a standardization subcommittee of the Joint Technical Committee ISO/IEC JTC 1 of the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC), that develops and facilitates standards within the field of coded character sets. The international secretariat of ISO/IEC JTC 1/SC 2 is the Japanese Industrial Standards Committee (JISC), located in Japan. [1] SC 2 is responsible for the development of the Universal Coded Character Set standard (ISO/IEC 10646), which is the international standard corresponding to the Unicode Standard.
The subcommittee was established in 1987 under ISO/TC 97 as ISO/TC 97/SC 2, originally with the title "Character Sets and Information Coding", with the area of work being, "the standardization of bit and byte coded representation of information for interchange including among others, sets of graphic characters, of control functions, of picture elements and audio information coding of text for processing and interchange; code extension techniques; implementation of these coded representations on interchange media and transmission systems". [2] When the Joint Technical Committee, ISO/IEC JTC 1, was established in 1987 as a merger between ISO/TC 97, Information Technology, and IEC/TC 83, the subcommittee was transferred into JTC 1, becoming ISO/IEC JTC 1/SC 2. Certain standards that are now under the jurisdiction of the ISO/IEC JTC 1/SC 2, such as ISO/IEC 646, were published before the creation of ISO/IEC JTC 1, under ISO/TC 97. [3] The original working groups (WGs) of ISO/IEC JTC 1/SC 2 were:
In 1991, WG 8, which had held the JBIG, JPEG and MPEG experts activities, was promoted to become its own subcommittee, creating ISO/IEC JTC 1/SC 29. Over the years, the subcommittee has established or disbanded WGs in response to changing standardization needs within the field of coded character sets. [2]
The scope of ISO/IEC JTC 1/SC 2 is "Standardization of graphic character sets and their characteristics, including:" [4]
Following the creation of ISO/IEC JTC 1/SC 29 in 1991, the scope of ISO/IEC JTC 1/SC 2 does not include audio and picture coding.
ISO/IEC JTC 1/SC 2 has one active working group (WG), which maintains the standard for the Universal Coded Character Set (ISO/IEC 10646). The focus of this WG is described in the group's terms of reference. That WG is: [2] [4] [5] [1]
| Working group | Working area |
|---|---|
| ISO/IEC JTC 1/SC 2/WG 2 | Universal coded character set |
The discontinuation of ISO/IEC JTC 1/SC 2/OWG-SORT was unanimously approved by resolution at the 2014 plenary meeting of ISO/IEC JTC 1/SC 2. The project, ISO/IEC 14651, which was allocated to ISO/IEC JTC 1/SC 2/OWG-SORT is now handled directly under ISO/IEC JTC 1/SC 2. [6]
ISO/IEC JTC 1/SC 2 works in close collaboration with a number of other organizations or subcommittees, both internal and external to ISO or IEC. Organizations internal to ISO or IEC that collaborate with or are in liaison to ISO/IEC JTC 1/SC 2 include: [5] [1]
Some organizations external to ISO or IEC that collaborate with or are in liaison to ISO/IEC JTC 1/SC 2 include:
Countries pay a fee to ISO to be members of subcommittees. [7]
The 24 "P" (participating) members of ISO/IEC JTC 1/SC 2 are: Canada, China, Czech Republic, Finland, France, Germany, Greece, Hungary, India, Indonesia, Ireland, Japan, Kazakhstan, Republic of Korea, Mongolia, Norway, Poland, Russian Federation, Serbia, Sri Lanka, Ukraine, United Kingdom, United States, and Viet Nam. [8]
The 26 "O" (observing) members of ISO/IEC JTC 1/SC 2 are: Armenia, Austria, Belgium, Bosnia and Herzegovina, Cuba, Egypt, Ghana, Hong Kong, Iceland, Islamic Republic of Iran, Israel, Italy, Democratic People's Republic of Korea, Lithuania, Malaysia, Mexico, Morocco, Netherlands, Pakistan, Romania, Saudi Arabia, Slovenia, Switzerland, Thailand, Tunisia, and Turkey. [8]
P-members are obliged to respond to ballots on standards developed by SC 2 (although they can enter an "abstain" response to a ballot if they choose to do so). O-members may comment on ballots, but are not allowed to vote.
ISO/IEC JTC 1/SC 2 has responsibility for 49 published ISO/IEC standards within the field of coded character sets, including: [1]
| ISO/IEC Standard | Title | Status | Description | WG/OWG |
|---|---|---|---|---|
| ISO/IEC 646 | Information technology – ISO 7-bit coded character set for information interchange | Published (1991) | Specifies a set of basic graphic characters and their coded representations through the use of a 7-bit character code [9] | 3 (disbanded) |
| ISO/IEC 2022 | Information technology – Character code structure and extension techniques | Published (1994) | Specifies: [10]
| 3 (disbanded) |
| ISO/IEC 6429 | Information technology – Control functions for coded character sets | Published (1992) | “Includes control functions and their coded representations for a 7-bit code, an extended 7-bit code, an 8-bit code or an extended 8-bit code” [11] | 3 (disbanded) |
| ISO/IEC 8859-1 | Information technology – 8-bit single-byte coded graphic character sets – Part 1: Latin alphabet No. 1 | Published (1998) | Specifies a set of up to 191 graphic characters and their coded representations through the use of a single 8-bit byte [12] | 3 (disbanded) |
| ISO/IEC 10646 | Information technology – Universal Coded Character Set (UCS) | Published (2014) | Specifies the Universal Character Set (UCS), and is applicable to the representation, transmission, interchange, processing, storage, input, and presentation of the written form of the languages of the world, as well as additional symbols [13] [14] | 2 |
| ISO/IEC 14651 | Information technology – International string ordering and comparison – Method for comparing character strings and description of the common template tailorable ordering | Published (2016) | Defines: [15]
| OWG-SORT (disbanded) |
Standards under development within ISO/IEC JTC 1/SC 2 include amendments to the ISO/IEC 10646 standard (covered by ISO/IEC JTC 1/SC 2/WG 2) and amendments to the ISO/IEC 14651 standard (covered directly by ISO/IEC JTC 1/SC 2 rather than in a WG).
ISO/IEC JTC 1/SC 34, Document description and processing languages is a subcommittee of the ISO/IEC JTC 1 joint technical committee, which is a collaborative effort of both the International Organization for Standardization and the International Electrotechnical Commission, which develops and facilitates standards within the field of document description and processing languages. The international secretariat of ISO/IEC JTC 1/SC 34 is the Japanese Industrial Standards Committee (JISC) located in Japan.
ISO/IEC JTC 1, entitled "Information technology", is a joint technical committee (JTC) of the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). Its purpose is to develop, maintain and promote standards in the fields of information and communications technology (ICT).
ISO/IEC JTC 1/SC 22 Programming languages, their environments and system software interfaces is a standardization subcommittee of the Joint Technical Committee ISO/IEC JTC 1 of the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC) that develops and facilitates standards within the fields of programming languages, their environments and system software interfaces. ISO/IEC JTC 1/SC 22 is also sometimes referred to as the "portability subcommittee". The international secretariat of ISO/IEC JTC 1/SC 22 is the American National Standards Institute (ANSI), located in the United States.
KPS 9566 is a North Korean standard specifying a character encoding for the Chosŏn'gŭl (Hangul) writing system used for the Korean language. The edition of 1997 specified an ISO 2022-compliant 94×94 two-byte coded character set. Subsequent editions have added additional encoded characters outside of the 94×94 plane, in a manner comparable to UHC or GBK.
ISO/IEC JTC 1/SC 27 Information security, cybersecurity and privacy protection is a standardization subcommittee of the Joint Technical Committee ISO/IEC JTC 1 of the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). ISO/IEC JTC 1/SC 27 develops International Standards, Technical Reports, and Technical Specifications within the field of information security. Standardization activity by this subcommittee includes general methods, management system requirements, techniques and guidelines to address information security, cybersecurity and privacy. Drafts of International Standards by ISO/IEC JTC 1 or any of its subcommittees are sent out to participating national standardization bodies for ballot, comments and contributions. Publication as an ISO/IEC International Standard requires approval by a minimum of 75% of the national bodies casting a vote. The international secretariat of ISO/IEC JTC 1/SC 27 is the Deutsches Institut für Normung (DIN) located in Germany.
ISO/IEC JTC 1/SC 36 Information Technology for Learning, Education and Training is a standardization subcommittee (SC), which is part of the Joint Technical Committee ISO/IEC JTC 1 of the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC), that develops and facilitates standards within the field of information technology (IT) for learning, education and training (LET). ISO/IEC JTC 1/SC 36 was established at the November 1999 ISO/IEC JTC 1 plenary in Seoul, Korea. The subcommittee held its first plenary meeting in March 2000 in London, United Kingdom. The international secretariat of ISO/IEC JTC 1/SC 36 is the Korean Agency for Technology and Standards (KATS), located in the Republic of Korea.
ISO/IEC JTC 1/SC 37 Biometrics is a standardization subcommittee in the Joint Technical Committee ISO/IEC JTC 1 of the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC), which develops and facilitates standards within the field of biometrics. The international secretariat of ISO/IEC JTC 1/SC 37 is the American National Standards Institute (ANSI), located in the United States.
ISO/IEC JTC 1/SC 39 Sustainability for and by Information Technology is a standardization subcommittee of the Joint Technical Committee ISO/IEC JTC 1 of the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC), that develops and facilitates standards within the field of sustainability and resource efficiency through Information Technology. The international secretariat of ISO/IEC JTC 1/SC 39 is the American National Standards Institute (ANSI), located in the United States.
ISO/IEC JTC 1/SC 7 Software and systems engineering is a standardization subcommittee of the Joint Technical Committee ISO/IEC JTC 1 of the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC), that develops and facilitates standards within the field of engineering of software products and systems. The international secretariat of ISO/IEC JTC 1/SC 7 is the Bureau of Indian Standards (BIS) located in India.
ISO/IEC JTC 1/SC 28 Office equipment is a standardization subcommittee of the Joint Technical Committee ISO/IEC JTC 1 of the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC), that develops and facilitates international standards, technical reports, and technical specifications within the field of office equipment and products, and systems composed of combinations of office equipment. The group's main focus lies within the area of printers and copiers. The international secretariat of ISO/IEC JTC 1/SC 28 is the Japanese Industrial Standards Committee (JISC) located in Japan.
ISO/IEC JTC 1/SC 32 Data management and interchange is a standardization subcommittee of the Joint Technical Committee ISO/IEC JTC 1 of the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC), which develops and facilitates standards within the field of data management and interchange. The international secretariat of ISO/IEC JTC 1/SC 32 is the American National Standards Institute (ANSI) located in the United States.
ISO/IEC JTC 1/SC 29, entitled Coding of audio, picture, multimedia and hypermedia information, is a standardization subcommittee of the Joint Technical Committee ISO/IEC JTC 1 of the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC). It develops and facilitates international standards, technical reports, and technical specifications within the field of audio, picture, multimedia, and hypermedia information coding. SC 29 includes the well-known JPEG and MPEG experts groups, and the standards developed by SC 29 have been recognized by nine Emmy Awards.
ISO/IEC JTC 1/SC 6 Telecommunications and information exchange between systems is a standardization subcommittee of the Joint Technical Committee ISO/IEC JTC 1. It is part of the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC), which develops and facilitates standards within the field of telecommunications and information exchange between systems.
ISO/IEC JTC 1/SC 24 Computer graphics, image processing and environmental data representation is a standardization subcommittee of the joint subcommittee ISO/IEC JTC 1 of the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC), which develops and facilitates standards within the field of computer graphics, image processing, and environmental data representation. The international secretariat of ISO/IEC JTC 1/SC 24 is the British Standards Institute (BSI) located in the United Kingdom.
Note: This working group has been disbanded.
ISO/IEC JTC 1/SC 23 Digitally recorded media for information interchange and storage is a standardization subcommittee of the joint technical committee ISO/IEC JTC 1 of the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC), which develops and facilitates standards within the field of removable digital storage media for digital information interchange. The international secretariat of ISO/IEC JTC 1/SC 23 is the Japanese Industrial Standards Committee (JISC) located in Japan.
ISO/IEC JTC 1/SC 17 Cards and security devices for personal identification is a standardization subcommittee of the Joint Technical Committee ISO/IEC JTC 1 of the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC), which develops and facilitates standards within the field of identification cards and personal identification. The international secretariat of ISO/IEC JTC 1/SC 17 is the British Standards Institution (BSI) located in the United Kingdom.
ISO/IEC JTC 1/SC 35 User interfaces is a standardization subcommittee (SC), which is part of the joint technical committee, ISO/IEC JTC 1, of the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC), that develops standards within the field of user-system interfaces in information and communication technology (ICT) environments. The subcommittee was founded at the 1998 Sendai ISO/IEC JTC 1 Plenary meeting, before which it was a working group directly under ISO/IEC JTC 1. The international secretariat of ISO/IEC JTC 1/SC 35 is AFNOR, located in France.
ISO/IEC JTC 1/SC 31 Automatic identification and data capture techniques is a subcommittee of the International Organization for Standardization (ISO) and the International Electrotechnical Commission (IEC) Joint Technical Committee (JTC) 1, and was established in 1996. SC 31 develops and facilitates international standards, technical reports, and technical specifications in the field of automatic identification and data capture techniques. The first Plenary established three working groups (WGs): Data Carriers, Data Content, and Conformance. Subsequent Plenaries established other working groups: RFID, RTLS, Mobile Item Identification and Management, Security and File Management, and Applications.
ISO 5426 is a character set developed by ISO, similar to ISO/IEC 6937. It was first published in 1983.
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