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EIDX Collection of Acronyms and Abbreviations

gloss-alphabet.jpg (31557 bytes)
NOTE: (n.a.) = Not an Acronym; (obs) = Obsolete


U.S. State Abbreviations | Country Codes (used in Internet Addresses) | Airport Codes

Acronyms and Abbreviations - See also Glossary - O

This letter last updated 27 November 2002

OADM Optical Add/Drop Multiplexer
OAG Official Airline Guide
OAGI Open Applications Group
OAGIS Open Applications Group Integration Specification, OAGI
OAP Old Age Pensioner (Brit.)
OAS Organization of American States
OASDI Old Age Survivors and Disability Insurance, part of FICA
OASIS Online Activities for Standards in School
OASIS Organization for the Advancement of Structured Information Standards, work on CGM, SGML and XML standards.   c.f. ebXML, CEFACT.
OB Orange Book, familiar name of TCSEC
ObAM Object Action Manager
OBE Officer of the British Empire
obs. (n.a.) Obsolete
OC Office and Communication module, SAP R/3
OCC Other Common Carrier
OCCA Open Cooperative Computing Architecture
OCL Object Constraint Language
OCLC Online Computer Library Center
OCR Optical Character Reader, a device to machine-read printed text
OCR Optical Character Recognition
ODA Office Document Architecture, TOP, MAP, CCITT T.400
ODB Object-Oriented Database
ODB Open-object Data Base
ODBC Open Data Base Connectivity
ODC Ozone Depleting Chemical
ODETTE Organisation for Data Exchange through Tele-Transmission in Europe
ODM Original Design Manufacturer, what OEM's are becoming as they outsource to CM's
ODP Online Distributed Processing, successor to OSI
ODS Ozone-Depleting Substances
OE Operating Environment
OECD Organization for Economic Cooperation and Development
OEM Original Equipment Manufacturer, buys, adds value, resells
OEO Baba Wawa's favowite cookie
OEO Office of Economic Opportunity
OFTEL OFFice of TELecommunications, UK
OGC Office of the General Councel, EPA
OGM Outgoing Message
OGRI Open Group Research Institute, was OSF (8/1996)
OH On Hand
OH Overhead
OHB On Hand Balance
Ohm Where the art is
OHMS On His/Her Majesty's Service (Brit., used on official forms)
OJT On-the-Job Training
OK Oll Korrect (German abbrev. dates to 1839)
OLA On-line Archive
OLAP On-Line Analytical Processing, Oracle
OLAR On-Line Add/Replacement
OLE Object Linking and Embedding
OLR On-Line Replacement, board exchange with powered system
OLTP On-Line Transaction Processing
OM Order of Merit (Brit.)
OMB Office of Management and Budget
OMF Object Management Facility, part of "New Wave"
OMG Object Management Group
OMG Oh My God!
OMS Online Mass Storage
OMS Order Management System
ONC Open Network Computing, a superset of NFS
ONE Often Not Efficient (as in Version 1.0 of a product)
OO Object Oriented, a kind of programming methodology
OOA/D Object-Oriented software Analysis and Design
OOD Object Oriented Design
OODBMS Object Oriented Data Base Management Systems
OODBS Object Oriented Data Base System
OOF Object of Functionality
OOP Object Oriented Programming
OOP Out Of Plant (Out of the Office)
OOPSLA OOP Systems, Languages, and Applications
OOTB Out Of The Box
OOW Oracle OpenWorld
OOW Out Of Warranty
OP OPerations
OP Order Processing
OP-AMP OPerational AMPlifier
OPAC (obs.) Online Public Access Catalog, now BLCP
OPC OpenGL Performance Characterization
OPEC Organization of Petroleum Exporting Countries
opt Option
OR ORganization name (X.400)
ORB Object Request Broker
ORCA Optimized Robot for Chemical Analysis
ORD ORchard FielD, original name of Chicago-O'Hare airport
ORMS Operating Resource Management, trendy alternative name for ERP
ORMS Operating Resource Management System
OS Operating System
OS/2 Obsolete Soon, Too.
OSCAR Online SCanning And Retrieval
OSCAR Organization of Southern California for the Advancement of RosettaNet
OSDN Open Source Development Network
OSF Open Software Foundation, private non-profit corporation
OSHA Occupational Safety and Health Administration
OSI Open Systems Interconnect, networking protocol
OSQL Object-oriented Structured Query Language
OST Online Service Provider
OST Offline STore, Microsoft Outlook (.ost file)
OSTA Optical Storage Technology Association
OT Old Testament
OT OverTime
OT Order Type
OTAR Over The Air Rekeying, security encryption key update scheme
OTC Over The Counter (non-prescription drugs)
OTD On Time Delivery
OTDR Optical Time-Domain Reflectometer
OTOH On The Other Hand
OTP One Time Programmable (eproms)
OTP Open Trading Protocol
OTS Open Transport Service, allows Macintosh and Unix to talk
OU Organizational Unit (X.400)
OXFAM OXford Committee for FAMine Relief