List
ITER CODAC Abbreviations and Acronyms
Abbreviations and acronyms widely used in the ITER CODAC documentation
Approval Process
Name Action Affiliation
Author Stepanov D. 14-Feb-2011:signed IO/DG/DIP/CHD/CIT/CODAC
CoAuthor Reviewers Klotz W.- D. Wallander A. 21-Feb-2011:recommended 14-Feb-2011:recommended IO/DG/DIP/CHD/CIT IO/DG/DIP/CHD/CIT/CODAC
Approver Bora D. 23-Feb-2011:approved IO/DG/DIP/CHD
Document Security: level 1 (IO unclassified) RO: Stepanov Denis
Read Access AD: ITER, AD: External Collaborators, AD: Section - CODAC, project administrator, RO
IDM UID
2LT73V
VERSION CREATED ON / VERSION / STATUS
14 Feb 2011 / 2.2 / APPROVED
Change Log Version Latest Status Date Description of Change
v2.2 Approved 14 Feb 2011 Implemented J.Poole remarks + added 26 new abbreviations
v2.1 Signed 10 Jan 2011 Normal
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v2.0 Signed 16 Apr 2010 Normal
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Update for 2010: 200 more acronyms added. Overhaul of the document style to conform to ITER standards.
Table of contents
1
Introduction...2
2
Acronyms ...3
1 Introduction
This is a stable list of abbreviations and acronyms being used by the CODAC team in various
documents and in daily work. The
online copy
maintained on the CODAC Team web site
provides more details and is generally more up to date.
This document lists 671 abbreviations.
Other acronym sources useful to consult:
2 Acronyms
Acronym Meaning 1oo2 One-out-of-two 2D Two Dimensional 2oo3 Two-out-of-three 2oo3oo4 Two-out-of-three-out-of-four 3D Three Dimensional 4D Four Dimensional4GL Fourth Generation Language
A (fr.) «Ampère» (Ampere)
AC Alternating Current
ACK ACKnowledge
AD Applicable Document
ADC Analogue to Digital Converter
ADM ADMinistration department
AGS Access Gateways System
AHS Alarm Handling System
AI Analogue Input
AI (in the context of Computer Science) Artificial Intelligence
AIF (fr.) «Agence ITER France» (Agency ITER France)
ALARA As Low As Reasonably Achievable
AMC Advanced Mezzanine Card
AMS Automated Maintenance System
ANSI American National Standards Institute
AO Analogue Output
API Application Programming Interface
ARP Address Resolution Protocol
ASAP As Soon As Possible
ASCII American Standard for Code Information Interchange
ASDEX-U Axially Symmetric Divertor EXperiment, Upgrade
ASIPP chinese Academy of Sciences Institute of Plasma Physics
ASN (fr.) «Autorité de Sûreté Nucléaire» (Nuclear Safety Authority)
ATA Advanced Technology Attachment
ATCA Advanced Telecom Computing Architecture
ATEX (fr.) «ATmosphères EXplosibles» (Explosive Atmospheres)
ATLAS A Toroidal LHC ApparatuS
AUT AUTomation group
AVI Audio Video Interleave
AVI (in the context of TTTs) AVN Interface
AVN Audio-Video Network
B Byte
BCR Backup Control Room
BD Block Diagram
BEAST Best Ever Alarm System Toolkit
BLOB Binary Large OBject
BMS Building Management System
BNL Brookhaven National Laboratory
BOM Bill Of Materials
BOY Best OPI Yet
bps bits per second
BSD Berkeley Software Distribution
C&ID Control and Instrumentation Diagram
C&P Contract and Procurement division
CA Channel Access
CAC CA Client
CAMAC Computer Automated Measurement And Control
CAS CA Server
CASE Computer Aided Software Engineering
CASPUR
(it.) «Consorzio interuniversitario per le Applicazioni di Supercalcolo Per Università e Ricerca»
(Inter-University Consortium for the Application of Super-Computing for Universities and Research)
CATIA Computer Aided Three-dimensional Interactive Application
CB Circuit Breaker
CBG Control BuildinG
CBM Common Bonding Network
CC Control Cubicle
CC (in the context of Plasma physics) Correction Coils
CCD (in the context of CODAC Documentation) CODAC Conceptual Design
CCD Charge-Coupled Device
CCS Civil Construction and Site support office
CCS (in the context of CODAC) CODAC Core System
CD Compact Disc
CD (in the context of Plasma physics) Current Drive
CDR Conceptual Design Review
CDS CODAC Development System
CEA (fr.)and Alternative Energy) «Commissariat à l'Énergie Atomique et aux énergies alternatives» (Commissariat for Atomic CEP Central Engineering and Plant support department
CERN (fr.) «Conseil Européen pour la Recherche Nucléaire» (European Council for Nuclear Research)
CHD CODAC and IT, Heating and current drive, Diagnostics department
CIE Central Integration and Engineering department
CIEMAT (sp.)for Energy, Environment and Technology) «Centro de Investigaciones Energéticas, MedioAmbientales y Tecnológicas» (Research Center CII CIN Interface
CIN Central Interlock Network
CIS Central Interlock System
CLD Control Logic Diagram
CLK CLocK
CMM Configuration Management Model
CMOS Complementary Metal-Oxide-Semiconductor
CMS CODAC Monitor System
CN ChiNa
CNP CODAC Network Panel
CNR (it.) «Consiglio Nazionale delle Ricerche» (National Research Council)
CODAC COntrol, Data Access and Communication
CORBA Common Object Request Broker Architecture
COS Common Operating State
COTS Commercial Off-The-Shelf
cPCI compact PCI
CPM CODAC Progress Meeting
CPS Coil Power Supply
CPU Central Processing Unit
CRC Cyclic Redundancy Check
CRPP (fr.) «Centre de Recherches en Physique des Plasmas» (Plasma Physics Research Center)
CS (in the context of Plasma physics) Central Solenoid
CS Client-Server
CS (in the context of CODAC software) Core System
CSI CSN Interface
CSMA/CD Carrier Sense Multiple Access with Collision Detection
CSN Central Safety Network
CSS Central Safety System
CSS (in the context of SCADA) Control System Studio
CSS-A CSS for personal Access risks
CSS-C CSS for Conventional risks
CSS-N CSS for Nuclear risks
CV Curriculum Vitae
CVS Concurrent Versions System
CWS Cooling Water System
CXRS Charge eXchange Recombination Spectroscopy
D Deuterium
DA Domestic Agency
DAC Digital to Analogue Converter
DANTE Delivery of Advanced Network Technology to Europe
DAQ Data AcQuisition
DAS Data Acquisition System
DAS (in the context of CODAC Systems) Data Access System
DAT DATa handling group
DB DataBase
DB (in the context of PLCs) Data Block
DBN Disaster Backup Network
DBS Disaster Backup System
DC Direct Current
DCR Design Change Request (Obsolete: From 2008 the term PCR is in use.)
DCS Distributed Control System
DDD Design Description Document
DDES Distributed Data Exchange System
DDG Deputy Director-General
DDR Double Data Rate
DEMO DEMOnstration power plant
DES Data Exchange System
DESY (ger.) «Deutsches Elektronen-SYnchrotron» (German Electron Synchrotron)
DFD Data Flow Diagram
DG Director-General
DG (in the context of Power supplies) Diesel Generator
DH Division Head
DHCP Dynamic Host Configuration Protocol
DI Digital Input
DIII-D Doublet III Divertor
DIME Direct Internet Message Encapsulation
DIO Digital I/O
DIP Department for ITER Project
DM Data Manager
DMA Direct Memory Access
DMS Data Marshalling System
DNB Diagnostic Neutral Beam
DNS Domain Name System
DO Digital Output
DO (in the context of ITER Organization) Design Office
DOM Document Object Model
DOORS Dynamic Object Oriented Requirements System
DPN Data Processing Node
DRAM Dynamic RAM
DRFC (fr.)Department) «Département de Recherches sur la Fusion Contrôlée» (Controlled Fusion Research DRG Design Requirements and Guidelines
DRN Data Receiving Node
DS Domain Supervisor
DSN Data Source Node
DSP Digital Signal Processor
DT Deuterium-Tritium
DTS Database Tools System
DVD Digital Video Disc
DVS Data Visualisation System
DWO Design Work Order
E Exa- (1018)
EAS Error Avoidance System
EAST Experimental Advanced Superconducting Tokamak
EC Electron Cyclotron
ECA Electron Cyclotron Absorption
ECA (in the context of Publications) European Conference Abstracts
ECE Electron Cyclotron Emission
ECH Electron Cyclotron Heating
ECR Experiment Control Room
ECRH Electron Cyclotron Resonance Heating
EDA Engineering Design Activities
EDH Electrical Design Handbook
EDM Extensible Display Manager
EDN Event Distribution Network
EEMUA Engineering Equipment and Materials Users' Association
EFDA European Fusion Development Agreement
EGEE Enabling Grids for E-sciencE
ELM Edge Localised Mode
EMC ElectroMagnetic Compatibility
EMI ElectroMagnetic Interference
EMS Environment Monitoring System
EN European Norm
ENEA (it.)Energy and Environment) «Ente per le Nuove tecnologie, l'Energia e l'Ambiente» (Agency for New Technologies, ENI EDN Interface
ENS Event Notification System
ENS (in the context of CODAC Systems Groups) ENabling Systems group
EOF End Of File
EPFL (fr.) «Ecole Polytechnique Fédérale de Lausanne» (Federal Polytechnic School of Lausanne)
EPICS Experimental Physics and Industrial Control System
EPR European Pressurized Reactor
ESO European Southern Observatory
EU European Union
EURATOM EURopean ATOMic energy community
eV electronVolt (1.60217653(14)∙10−19 J)
F Farad (m−2∙kg−1∙s4∙A2)
F4E Fusion For Energy
FAN FAN, fan tray
FAQ Frequently Asked Questions
FAT Factory Acceptance Test
FBD Functional Block Diagram
FBS Functional Breakdown Structure
FD Functional Diagram
FDDI Fiber Distributed Data Interface
FDR Final Design Report
FDR (in the context of Design reviews) Final Design Review
FMEA Failure Mode and Effect Analysis
FMECA Failure Mode, Effects and Criticality Analysis
FPGA Field Programmable Gate Array
FPSS Fusion Power Shutdown System
FPU Floating Point Unit
FSM Finite State Machine
FTE Full-Time Equivalent
FTP File Transfer Protocol
FZJ (ger.) «ForschungsZentrum Jülich» (Juelich Research Center)
G Giga- (109)
g gram
GA General Atomics
GDRD General Design Requirements Document
GEANT Gigabit European Academic NeTwork
GIN General ITER Network
GLORIAD GLObal RIng network for advanced Application Development
GMT Greenwich Mean Time
GNU GNU's Not UNIX
GOS Global Operating State
GPI Generic Plant Interface
GPIB General Purpose Interface Bus
GPL General Public License
GPS (in the context of CODAC Systems) Generic Plant System
GPS Global Positioning System
GPU Graphics Processing Unit
GRS General Reporting System
GUI Graphical User Interface
H Henry (m2∙kg∙s−2∙A−2)
H (in the context of Plasma physics) Hydrogen
HAL Hardware Abstraction Layer
HAZOP HAZard and OPerability
HDF Hierarchical Data Format
HF Human Factors
HF (in the context of Technology) High Frequency
HMI Human-Machine Interface
HNB Heating Neutral Beam
HPC High Performance Computing
HPN High Performance Networks
HTML HyperText Markup Language
HTTP HyperText Transfer Protocol
HV High Voltage
HVAC Heating, Ventilation and Air Conditioning
HW HardWare
HWC Hard Wired Controls
HWI Hard Wired Indicators
Hz Hertz (s-1)
I&C Instrumentation and Control
I/O Input / Output
IAEA International Atomic Energy Agency
IBD Interlock Block Diagram
IBM International Business Machines
IC (in the context of Plasma physics) Ion Cyclotron
IC ITER Council
ICALEPCS International Conference on Accelerator and Large Experimental Physics Control Systems
ICD Interface Control Document
ICE Internet Communications Engine
ICH Ion Cyclotron Heating
ICMP Internet Control Message Protocol
ICP ITER Collaborative Platform
ICRF Ion Cyclotron Resonance Frequency
ICRH Ion Cyclotron Resonance Heating
ID IDentifier
IDE Integrated Development Environment
IDL (in the context of MDSplus) Interactive Data Language
IDL Interface Description Language
IDM ITER Document Management
IEC International Electrotechnical Commission
IEEE Institute of Electrical and Electronics Engineers
IETF Internet Engineering Task Force
IHCM IO/DA High level Coordination Meeting
IL Instruction List
IN INdia
INB (fr.) «Installation Nucléaire de Base» (Basic Nuclear Installation)
Internet Interconnected networks
IO ITER Organization
IOB I/O Board
IOC Input / Output Controller
IP (in the context of IEC 60529) Ingress Protection
IP Internet Protocol
IP (in the context of Licensing) Intellectual Property
IPC (in the context of Technology) Industrial PC
IPC Inter-Process Communication
IPP (ger.) «Max-Planck-Institut für PlasmaPhysik» (Max Planck Institute of Plasma Physics)
IPS Integrated Project Schedule
IPT Integrated Product Team
IPv6 Internet Protocol version 6
IR InfraRed
IRMIS Integrated Relational Model of Installed Systems
IRQ Interrupt ReQuest
IRSN (fr.)Institute) «Institut de Radioprotection et de Sûreté Nucléaire» (Radioprotection and Nuclear Safety IS Interface Sheet
ISA International Society of Automation
ISA (in the context of Computers) Industry Standard Architecture
ISO International Standards Organization
ISS Informatics Support System
IST (por.) «Instituto Superior Técnico» (Higher Technical Institute)
IT Information Technology
ITER (lat.) «ITER» (The way)
ITM Integrated Tokamak Modeling
IUA ITER Unit of Account
J Joule (m2∙kg∙s−2)
JA JApan
JAEA Japan Atomic Energy Agency
JET Joint European Torus
JPEG Joint Photographic Experts Group
JT Japan Torus
JWS Joint Work Site
k kilo- (103)
K Kelvin
KO KOrea
KoM Kick-off Meeting
KSTAR Korea Superconducting Tokamak Advanced Research
LabVIEW Laboratory Virtual Instrumentation Engineering Workbench
LAN Local Area Network
LCC Local Control Cubicle
LD Ladder Diagram
LDAP Lightweight Directory Access Protocol
LDB Live DataBase
LED Light Emitting Diode
LHC Large Hadron Collider
LHD Large Helical Device
LHH Lower Hybrid Heating
LIDAR LIght Detection And Ranging
LLNL Lawrence Livermore National Laboratory
LMJ (fr.) «Laser MégaJoule» (MegaJoule Laser)
LOCA Loss Of Coolant Accident
LSB Least Significant Bit
LTM Long Term Maintenance
M Mega- (106)
m (in the context of SI unit prefixes) milli- (10-3)
m metre
MAC Media Access Control
MAC (in the context of ITER Organization) Management Advisory Committee
MARTe Multi-platform Application Real-Time executor
MATLAB MATrix LABoratory
MCR Main Control Room
MDSplus Model Data System plus
MEDM Motif Editor and Display Manager
MET Middle European Time
MHD MagnetoHydroDynamics
MIME Multipurpose Internet Mail Extensions
min minute (60 s)
MIT Massachusetts Institute of Technology
MMI Man-Machine Interface
MoM Minutes of Meeting
MON MONitoring group
MPEG Moving Picture Experts Group
MQP Management and Quality Program
MS MicroSoft
MSB Most Significant Bit
MSDN MicroSoft Development Network
MSE Motional Stark Effect
MTBF Mean Time Between Failures
MTTR Mean Time To Recovery
MTU Maximum Transmission Unit
n nano- (10-9)
N/A Not Applicable
NB Neutral Beam
NBH Neutral Beam Heating
NBI Neutral Beam Injection
NBTF Neutral Beam Test Facility
NET NETworking group
NFRC National Fusion Research Center
NFS Network File System
NI National Instruments
NIC Network Interface Controller
NIF National Ignition Facility
NMN Network Monitoring Network
NNNN sequential number
NPA Neutral Particle Analyser
NS Nuclear Safety
NSA Nuclear Safety Authority
NSTX National Spherical Torus Experiment
NTM Neoclassical Tearing Mode
NTP Network Time Protocol
NUREG NUclear REGulations
OLC Operating Limits and Conditions
OLE Object Linking and Embedding
OPC OLE for Process Control
OPI OPerator Interface
OPN Open Public Network
ORB Object Request Broker
ORG Operation Request Gatekeeper
ORM Object-Relational Mapping
OS Operating System
OSI Open Systems Interconnection
OTS Operator Training System
P Peta- (1015)
p pico- (10-12)
P&ID Process and Instrumentation Diagram
PA Procurement Arrangement
Pa Pascal (m-1∙kg∙s-2)
PAT Provisional Acceptance Test
PBS Plant Breakdown Structure
PC Personal Computer
PCDH Plant Control Design Handbook
PCF Plant system Controller, Fast controls
PCG Plasma Control Group
PCI Peripheral Component Interconnect
PCIe PCI express
PCN Plant Commissioning Network
PCR Project Change Request
PCS Pulse Control System
PCS (in the context of Plasma control) Plasma Control System
PCS (in the context of TTTs) Plant system Controller, Slow controls
PD Plant Description
PDDG Principal Deputy Director-General
PDF Portable Document Format
PDM Product Data Management
PDR Preliminary Design Review
PDS Plant Design Specification
PF (in the context of Plasma physics) Poloidal Field
PF Packet Filter
PFB Plant system Field Bus
PFD Process Flow Diagram
PHP PHP: Hypertext Preprocessor
PHTS Primary Heat Transfer System
PIC Programmable Interface Controller
PIC (in the context of TTTs) Plant Interlock Controller
PICMG PCI Industrial Computer Manufacturers Group
PID Project Integration Document
PIS Plant Interlock System
PLC Programmable Logic Controller
PLL Phase Locked Loop
PLM Product Lifecycle Management
PLN Plant system Local Network
PLS Pohang Light Source
PM Progress Meeting
PMC PCI Mezzanine Card
PMS Plant Monitoring System
PMWG Project Management Working Group
PNG Portable Network Graphics
PO Purchase Order
POG Plasma Operations Group
PON Plant Operation Network
POS Plant Operating StatePSOS instead.) (Obsolete: Not recommended for use because of confusion with Pulse / Plasma Operation State. Use POS (in the context of Global ITER states) Pulse Operation State
POSIX Portable Operating System Interface for UNIX
POZ Plant Operation Zone
PP Procurement Package
PPEN Pulsed Power Electrical Network
PPM Project Progress Meeting
PPPL Princeton Plasma Physics Laboratory
PPPPPP PBS level 3 identifier
PPTF Port Plug Test Facility
PPY Professional Per Year
PR Project Requirements
PR (in the context of Procurement) Purchase Request
PRO PROject office
PRT PRinTer
PS Plant System
PS (in the context of Technology) Power Supply
PS (in the context of Computer Science) Publish-Subscribe
PS (in the context of ITER Baseline) Project Specification
PSAR Preliminary Safety Assessment Report
PSC Plant Safety Controller
PSE Plant System Equipment
PSEG Plant System Engineering Group
PSH Plant System Host
PSOS Plant System Operating State
PSS Plant Safety System
PSS (in the context of CODAC Systems) Plant Simulator System
PT Participant Team
PTP Precision Time Protocol
PTS Performance Testing System
PV Process Variable
PVSS (ger.) «ProzessVisualiSierung und Steuerung» (Process Visualisation and Control)
PXI PCI eXtensions for Instrumentation
PXIe PXI express
QA Quality Assurance
QAP Quality Assurance Plan
QC Quality Control
QoS Quality of Service
R&D Research and Development
R/O Read Only
R/W Read / Write
RAID Redundant Array of Independent Disks
RAM Random Access Memory
RAMI Reliability, Availability, Maintainability and Inspectability
RCP Rich Client Platform
RCS Revision Control System
RD Reference Document
RDBMS Relational DataBase Management System
RENATER (fr.)Recherche» (National Telecommunication Network for Technology, Education and Research) «REseau NAtional de télécommunications pour la Technologie, l'Enseignement et la RF (in the context of Technology) Radio Frequency
RF Russian Federation
RFC Request For Comments
RFI Radio Frequency Interference
RFX Reversed Field eXperiment
RH Remote Handling
RHEL Red Hat Enterprise Linux
RIO Remote I/O
RJ Registered Jack
RJH (fr.) «Réacteur Jules Horowitz» (Jules Horowitz Reactor)
RMS Root Mean Square
RO Responsible Officer
ROM Read-Only Memory
RP Remote Participation
RPC Remote Procedure Call
RPM Red hat Package Manager
RPrS (fr.) «Rapport Préliminaire de Sûreté» (Preliminary Safety Report)
RT Real-Time
RWM Resistive Wall Mode
s second
S&I Safety and Interlocks
S-ICD System Interface Control Document
SAS Safety And Security department
SAT Site Acceptance Test
SATA Serial ATA
SAX Simple API for XML
SCADA Supervisory Control and Data Acquisition
SCC Signal Conditioning Cubicle
SCCB Software Configuration Control Board
SCI Signal Conditioning Interface
SCS Supervisory Control System
SCXML State Chart XML
SD Self-Description
SD (in the context of PCDH) Satellite Document
SDD Self-Description Data
SDI Safety Design and Integration section
SDK Software Development Kit
SDL Specification and Description Language
SDN Synchronous Databus Network
SDRAM Synchronous DRAM
SDS Site-wide Distribution System
SER common SERvices group
SES Schedule Execution System
SFC Sequential Function Chart
SI (fr.) «Système International d'unités» (International System of units)
SIC Safety Importance Class
SIL Safety Integrity Level
SJC Signal Junction Cabinet
SL Seismic Level
SLES SuSE Linux Enterprise Server
SLS Swiss Light Source
SMP Symmetric MultiProcessing
SMS Short Message Service
SMTP Simple Mail Transfer Protocol
SN Serial Number
SNI SDN Interface
SNL State Notation Language
SNMP Simple Network Management Protocol
SNS Spallation Neutron Source
SOA Service-Oriented Architecture
SOAP Simple Object Access Protocol
SPS Schedule Preparation System
SQL Structured Query Language
SRD System Requirements Document
SSD SEE System Design
SSD (in the context of Computers) Solid-State Drive
SSEN Steady State Electrical Network
SSEPN Steady State Electrical Power Network (Obsolete: SSEN should be used instead (the meaning is the same))
SSH Secure SHell
STM Short Term Maintenance
STS Short Term Stand-by
SUP SUPervision group
SuSE (ger.) «Software und System Entwicklung» (Software and System Development)
Sv Sievert (m2∙s−2)
SVG Scalable Vector Graphics
SVS Schedule Validation System
SW SoftWare
SWT Standard Widget Toolkit
SXR Soft X-Ray
SysML Systems Modeling Language
T (in the context of SI unit prefixes) Tera- (1012)
T Tesla (kg∙s−2∙A−1)
T (in the context of Plasma physics) Tritium
t tonne (103 kg)
TA Task Agreement
TBC To Be Confirmed
TBD To Be Defined
TBM Test Blanket Module
TCL (in the context of MDSplus) Tree Command Language
TCL Tool Command Language
TCM Technical Committee Meeting
TCM (in the context of ITER Organization) Technical Coordination Meeting
TCN Time Communication Network
TCO Test and Conditioning Operation
TCP Transmission Control Protocol
TCS Test and Conditioning State
TCS (in the context of Companies) Tata Consultancy Services
TCV (fr.) «Tokamak à Configuration Variable» (Variable configuration tokamak)
TCWS Tokamak Cooling Water System
TDI Tree Data Interface
TF (in the context of Plasma physics) Toroidal Field
TF Task Force
TFTP Trivial File Transfer Protocol
TKM Tokamak department
TLA Three-Letter Acronym
TM (in the context of ITER Organization) Technical Meeting
TM Trade Mark
TNI TCN Interface
TOC Table Of Contents
Tokamak (rus.) «Toroidal'naya kamera s magnitnymi katushkami» (Toroidal chamber with magnetic coils)
TTL Transistor-Transistor Logic
TTL (in the context of Networks) Time To Live
TTT function category designator
TV TeleVision
UDP User Datagram Protocol
UID Unique IDentifier
UKAEA United Kingdom Atomic Energy Authority
UML Unified Modeling Language
UNIX UNiplexed Information and Computing System
UPS Uninterruptible Power Supply
URI Uniform Resource Identifier
URL Uniform Resource Locator
US United States
USA United States of America
USB Universal Serial Bus
UTC Universal Time Coordinated
UTF Unicode Transformation Format
UUID Universal Unique IDentifier
V Volt (m2∙kg∙s−3∙A−1)
V&V Verification and Validation
VC Video Conference
VCS Version Control System
VDCT Visual Database Configuration Tool
VDE Vertical Displacement Event
VIP Very Important Person
VLAN Virtual LAN
VME Versa Module Europa
VNC Virtual Network Computing
VR Visiting Researcher
VUV Vacuum UltraViolet
VV Vacuum Vessel
VVPSS Vacuum Vessel Pressure Suppression System
W Watt (m2∙kg∙s−3)
W3C World Wide Web Consortium
W7-X Wendelstein 7-X
WAN Wide Area Network
WBS Work Breakdown Structure
Wi-Fi Wireless Fidelity
WIP Work In Progress
WLAN Wireless LAN
WS (in the context of Web) Web Service
WS Work Station
WSDL Web Services Description Language
WWW World Wide Web
XMI XML Metadata Interchange
XML eXtensible Mark-up Language
XMPP eXtensible Messaging and Presence Protocol
XSD XML Schema Definition
XSLT eXtensible Stylesheet Language Transformations
YUM Yellowdog Updater, Modified
°C degree Celsius (K − 273.15)
Ω Ohm (m2∙kg∙s−3∙A−2)
μ micro- (10-6)