| ACSE |
Association Control Service Element |
| AG |
Advisory Group |
| AMD |
Amendment |
| ANSI |
American National Standards Institute |
| AOW |
Asia-Oceania Workshop |
| API |
- Application Program Interface
- Application Programming Interface
- Application Programmatic Interface
（* See the example of use of each abbreviation below.） |
| ASCII |
American Standard Code for Information Interchange |
| ASN.1 |
Abstract Syntax Notation One |
| ATM |
Asynchronous Transfer Mode |
| ATS |
Abstract Test Suite |
| BSI |
British Standards Institution |
| CALS |
- Computer - Aided Acquisition and Logistics Support
- Continuous Acquisition and Lifecycle Support
- Commerce At Light Speed |
| CASCO |
ISO Committee on Conformity Assessment |
| CCITT |
International Telegraph and Telephone Consultative Committee
(changed to ITU-T) |
| CD |
Committee Draft |
| CEN |
European Committee for Standardization |
| CLNS |
ConnectionLess mode Network Service |
| CONS |
Connection mode Network Service |
| COR |
Technical Corrigendum |
| CORBA |
Common Object Request Broker Architecture |
| CT |
Collaborative Team |
| DAM |
Draft Amendment |
DCOR |
Draft Technical Corrigendum |
| DFR |
Document Filing and Retrieval |
| DIN |
Deutches Institut fur Normung |
| DIS |
Draft International Standard |
| DISP |
Draft International Standardized Profile |
| DNS |
Domain Name System |
| DR |
Defect Report |
| DSA |
Directory System Agent |
| DTAM |
Document Transfer And Manipulation |
| DTR |
Draft Technical Report |
| DUA |
Directory User Agent |
| EC |
European Community |
| ECMA |
ECMA
(historically) European Computer Manufacturers Association |
| EDI |
Electronic Data Interchange |
| EDI FACT |
EDI For Administration Commerce and Trade (ISO 9735) |
| EN |
European Standard |
| ETSI |
European telecommunications Standards Institute |
| EWOS |
European Workshop for Open Systems |
| FCC |
Federal Communications Commission |
| FD |
Formal Description |
| FDDI |
Fiber Distributed Data Interface |
| FDT |
Formal Description Technique |
| FTAM |
File Transfer, Access and Management |
| FTP |
File Transfer Protocol |
| GIF |
Graphic Interchange Format |
| GII |
Global Information Infastructure |
| GUI |
Graphical User Interface |
| HTTP |
Hyper Text Transfer Protocol |
| ICD |
International Code Designator |
| IEC |
International Electrotechnical Commission |
| IEEE |
The Institute of Electrical and Electronics Engineers |
| IESG |
Internet Engineering Steering Group |
| IETF |
Internet Engineering Task Force |
| IFIP |
International Federation for Information Processing |
| INSTAC |
Information Technology Research and Standardization Center |
| INTAP |
Interoperability Technology Association for Information Processing, Japan |
| IP |
Internet Protocol |
| IPA |
Information-technology Promotion Agency, Japan |
| IPSJ |
Information Processing Society of Japan |
| IPS |
Information Processing Society of Japan |
| IS |
International Standard |
| ISO |
International Organization for Standardization |
| ISOC |
Internet Society |
| ISP |
International Standardized Profile |
| ITTF |
Information Technology Task Force |
| ITU-T |
International Telecommunications Union - Telecommunications Standardization Sector |
| JBIG |
Joint Bi-level Image Experts Group |
| JEIDA |
Japan Electronic Industry Development Association |
| JIPDEC |
Japan Information Processing Development Center |
| JIS |
Japanese Industrial Standard |
| JISC |
Japan Industrial Standards Committee |
| JPEG |
Joint Photographic Experts Group |
| JSA |
Japanese Standards Association |
| JTC 1 |
ISO/IEC Joint Technical Committee 1 |
| JWG |
Joint Working Group |
| LLC |
Logical Link Control |
| MAC |
Media Access Control |
| METI |
Ministry of Economy, Trade and Industry |
| MHEG |
Multimedia and Hypermedia Experts Group |
| MHS |
Message Handling System (X.400) |
| MIME |
Murtipurpose Internet Mail Extensions |
| MITI |
Ministry of International Trade and Industry |
| MO |
Maintenance Organization |
| MPEG |
Moving Picture Experts Group |
| MPT |
Ministry of Posts and Telecommunications |
| NASA |
National Aeronautics and Space Administration |
| NB |
National Body |
| NCALS |
Nippon CALS Research Partnership |
| NII |
National Information Infrastructure |
| NP |
New Work Item Proposal |
| ODA |
Open Document Architecture |
| OIW |
OSE Implementors' Workshop |
| OSE |
Open System Environment |
| OSF |
Open Software Foundation |
| OSI |
Open Systems Interconnection |
| OSIA |
OSI Association |
| OWG |
Other Working Group |
| PAS |
Publicly Available Specification |
| PDAM |
Proposed Draft Amendment |
| PDISP |
Proposed Draft International Standardized Profile |
| PDTR |
Proposed Draft Technical Report |
| PDU |
Protocol Data Unit |
| PICS |
Protocol Implementation Conformance Statement |
| PPP |
Point to Point Protocol |
| PTS |
Profile Test Suite |
| QoS |
Quality of Service |
| RWS-CC |
Regional Workshop Coordinating Committee |
| SC |
Subcommittee |
| SGFS |
Special Group on Functional Standardization |
| SGML |
Standard Generalized Markup Language |
| SMTP |
Simple Mail Transfer Protocol |
| SWG |
Special Working Group |
| SWIFT |
Society for Worldwide Interbank Financial Telecommunication International Fund Transfer |
| TC |
Technical Committee |
| TCP/IP |
Transmission Control Protocol/Internet Protocol |
| TIFF |
Tagged Image File Format |
| TMB |
ISO Technical Management Board |
| TR |
Technical Report |
| TTC |
The Telecommunication Technology Committee |
| VT |
Virtual Terminal |
| W3C |
World Wide Web Consortium |
| WD |
Working Draft |
| WG |
Working Group |
