ITER CODAC Abbreviations and Acronyms

IDM UID 2LT73V VERSION CREATED ON / VERSION / STATUS 14 Feb 2011 / 2.2 / APPROVED EXTERNAL REFERENCE 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 Approver Bora D. 23-Feb-2011:approved IO/DG/DIP/CHD Document Security: level 1 (IO unclassified) RO: Stepanov Denis Read Access IO/DG/DIP/CHD/CIT IO/DG/DIP/CHD/CIT/CODAC AD: ITER, AD: External Collaborators, AD: Section - CODAC, project administrator, RO PDF generated on 23-Feb-2011

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 0 false false false /* Style Definitions */ table.msonormaltable {mso-style-name:"table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"times New Roman"; mso-fareast-font-family:"times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} Minor revision before the external review for the PCDH v6 v2.0 Signed 16 Apr 2010 Normal 0 false false false PDF generated on 23-Feb-2011

/* Style Definitions */ table.msonormaltable {mso-style-name:"table Normal"; mso-tstyle-rowband-size:0; mso-tstyle-colband-size:0; mso-style-noshow:yes; mso-style-parent:""; mso-padding-alt:0cm 5.4pt 0cm 5.4pt; mso-para-margin:0cm; mso-para-margin-bottom:.0001pt; mso-pagination:widow-orphan; font-size:10.0pt; font-family:"times New Roman"; mso-fareast-font-family:"times New Roman"; mso-ansi-language:#0400; mso-fareast-language:#0400; mso-bidi-language:#0400;} v1.0 Signed 16 Feb 2009 Update for 2010: 200 more acronyms added. Overhaul of the document style to conform to ITER standards. PDF generated on 23-Feb-2011

Table of contents 1 Introduction...2 2 Acronyms...3 Page 1 of 14

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: Project-wide abbreviation list (2MU6W5). Page 2 of 14

2 Acronyms Acronym 1oo2 2D 2oo3 2oo3oo4 3D 4D 4GL A AC ACK AD ADC ADM AGS AHS AI AI AIF ALARA AMC AMS ANSI AO API ARP ASAP ASCII ASDEX-U ASIPP ASN ATA ATCA ATEX ATLAS AUT AVI AVI AVN B BCR BD BEAST BLOB BMS BNL BOM BOY bps BSD C&ID C&P CA CAC CAD Meaning One-out-of-two Two Dimensional Two-out-of-three Two-out-of-three-out-of-four Three Dimensional Four Dimensional Fourth Generation Language (fr.) «Ampère» (Ampere) Alternating Current ACKnowledge Applicable Document Analogue to Digital Converter ADMinistration department Access Gateways System Alarm Handling System Analogue Input (in the context of Computer Science) Artificial Intelligence (fr.) «Agence ITER France» (Agency ITER France) As Low As Reasonably Achievable Advanced Mezzanine Card Automated Maintenance System American National Standards Institute Analogue Output Application Programming Interface Address Resolution Protocol As Soon As Possible American Standard for Code Information Interchange Axially Symmetric Divertor EXperiment, Upgrade chinese Academy of Sciences Institute of Plasma Physics (fr.) «Autorité de Sûreté Nucléaire» (Nuclear Safety Authority) Advanced Technology Attachment Advanced Telecom Computing Architecture (fr.) «ATmosphères EXplosibles» (Explosive Atmospheres) A Toroidal LHC ApparatuS AUTomation group Audio Video Interleave (in the context of TTTs) AVN Interface Audio-Video Network Byte Backup Control Room Block Diagram Best Ever Alarm System Toolkit Binary Large OBject Building Management System Brookhaven National Laboratory Bill Of Materials Best OPI Yet bits per second Berkeley Software Distribution Control and Instrumentation Diagram Contract and Procurement division Channel Access CA Client Computer Aided Design Page 3 of 14

CAMAC CAS CASE CASPUR CATIA CB CBG CBM CC CC CCD CCD CCS CCS CD CD CDR CDS CEA CEP CERN CHD CIE CIEMAT CII CIN CIS CLD CLK CMM CMOS CMS CN CNP CNR CODAC CORBA COS COTS cpci CPM CPS CPU CRC CRPP CS CS CS CSI CSMA/CD CSN CSS CSS CSS Computer Automated Measurement And Control CA Server Computer Aided Software Engineering (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) Computer Aided Three-dimensional Interactive Application Circuit Breaker Control BuildinG Common Bonding Network Control Cubicle (in the context of Plasma physics) Correction Coils (in the context of CODAC Documentation) CODAC Conceptual Design Charge-Coupled Device Civil Construction and Site support office (in the context of CODAC) CODAC Core System Compact Disc (in the context of Plasma physics) Current Drive Conceptual Design Review CODAC Development System (fr.) «Commissariat à l'énergie Atomique et aux énergies alternatives» (Commissariat for Atomic and Alternative Energy) Central Engineering and Plant support department (fr.) «Conseil Européen pour la Recherche Nucléaire» (European Council for Nuclear Research) CODAC and IT, Heating and current drive, Diagnostics department Central Integration and Engineering department (sp.) «Centro de Investigaciones Energéticas, MedioAmbientales y Tecnológicas» (Research Center for Energy, Environment and Technology) CIN Interface Central Interlock Network Central Interlock System Control Logic Diagram CLocK Configuration Management Model Complementary Metal-Oxide-Semiconductor CODAC Monitor System ChiNa CODAC Network Panel (it.) «Consiglio Nazionale delle Ricerche» (National Research Council) COntrol, Data Access and Communication Common Object Request Broker Architecture Common Operating State Commercial Off-The-Shelf compact PCI CODAC Progress Meeting Coil Power Supply Central Processing Unit Cyclic Redundancy Check (fr.) «Centre de Recherches en Physique des Plasmas» (Plasma Physics Research Center) (in the context of Plasma physics) Central Solenoid Client-Server (in the context of CODAC software) Core System CSN Interface Carrier Sense Multiple Access with Collision Detection Central Safety Network Central Safety System (in the context of SCADA) Control System Studio (in the context of WWW) Cascading Style Sheets Page 4 of 14

CSS-A CSS-C CSS-N CV CVS CWS CXRS D DA DAC DANTE DAQ DAS DAS DAT DB DB DBN DBS DC DCR DCS DDD DDES DDG DDR DEMO DES DESY DFD DG DG DH DHCP DI DIII-D DIME DIO DIP DM DMA DMS DNB DNS DO DO DOM DOORS DPN DRAM DRFC DRG DRN DS DSN DSP DSS CSS for personal Access risks CSS for Conventional risks CSS for Nuclear risks Curriculum Vitae Concurrent Versions System Cooling Water System Charge exchange Recombination Spectroscopy Deuterium Domestic Agency Digital to Analogue Converter Delivery of Advanced Network Technology to Europe Data AcQuisition Data Acquisition System (in the context of CODAC Systems) Data Access System DATa handling group DataBase (in the context of PLCs) Data Block Disaster Backup Network Disaster Backup System Direct Current Design Change Request (Obsolete: From 2008 the term PCR is in use.) Distributed Control System Design Description Document Distributed Data Exchange System Deputy Director-General Double Data Rate DEMOnstration power plant Data Exchange System (ger.) «Deutsches Elektronen-SYnchrotron» (German Electron Synchrotron) Data Flow Diagram Director-General (in the context of Power supplies) Diesel Generator Division Head Dynamic Host Configuration Protocol Digital Input Doublet III Divertor Direct Internet Message Encapsulation Digital I/O Department for ITER Project Data Manager Direct Memory Access Data Marshalling System Diagnostic Neutral Beam Domain Name System Digital Output (in the context of ITER Organization) Design Office Document Object Model Dynamic Object Oriented Requirements System Data Processing Node Dynamic RAM (fr.) «Département de Recherches sur la Fusion Contrôlée» (Controlled Fusion Research Department) Design Requirements and Guidelines Data Receiving Node Domain Supervisor Data Source Node Digital Signal Processor Data Storage System Page 5 of 14

DT Deuterium-Tritium DTS Database Tools System DVD Digital Video Disc DVS Data Visualisation System DWO Design Work Order E Exa- (10 18 ) 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.) «Ente per le Nuove tecnologie, l'energia e l'ambiente» (Agency for New Technologies, Energy and Environment) 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 s 4 A 2 ) 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 FST Fusion Science and Technology department Page 6 of 14

FTE Full-Time Equivalent FTP File Transfer Protocol FZJ (ger.) «ForschungsZentrum Jülich» (Juelich Research Center) G Giga- (10 9 ) 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 (m 2 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 IDEF0 Integration DEFinition for function modeling Page 7 of 14

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.) «Institut de Radioprotection et de Sûreté Nucléaire» (Radioprotection and Nuclear Safety Institute) 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 (m 2 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- (10 3 ) 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 LEZ Loop Exclusion Zone Page 8 of 14

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- (10 6 ) 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 OH Operations Handbook Page 9 of 14

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- (10 15 ) 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 POC Proof Of Concept Page 10 of 14

POG PON POS POS POSIX POZ PP PPEN PPM PPPL PPPPPP PPTF PPY PR PR PRO PRT PS PS PS PS PSAR PSC PSE PSEG PSH PSOS PSS PSS PT PTP PTS PV PVSS PXI PXIe QA QAP QC QoS R&D R/O R/W RAID RAM RAMI RCP RCS RD RDBMS RENATER RF RF RFC RFI RFM Plasma Operations Group Plant Operation Network Plant Operating State (Obsolete: Not recommended for use because of confusion with Pulse / Plasma Operation State. Use PSOS instead.) (in the context of Global ITER states) Pulse Operation State Portable Operating System Interface for UNIX Plant Operation Zone Procurement Package Pulsed Power Electrical Network Project Progress Meeting Princeton Plasma Physics Laboratory PBS level 3 identifier Port Plug Test Facility Professional Per Year Project Requirements (in the context of Procurement) Purchase Request PROject office PRinTer Plant System (in the context of Technology) Power Supply (in the context of Computer Science) Publish-Subscribe (in the context of ITER Baseline) Project Specification Preliminary Safety Assessment Report Plant Safety Controller Plant System Equipment Plant System Engineering Group Plant System Host Plant System Operating State Plant Safety System (in the context of CODAC Systems) Plant Simulator System Participant Team Precision Time Protocol Performance Testing System Process Variable (ger.) «ProzessVisualiSierung und Steuerung» (Process Visualisation and Control) PCI extensions for Instrumentation PXI express Quality Assurance Quality Assurance Plan Quality Control Quality of Service Research and Development Read Only Read / Write Redundant Array of Independent Disks Random Access Memory Reliability, Availability, Maintainability and Inspectability Rich Client Platform Revision Control System Reference Document Relational DataBase Management System (fr.) «REseau NAtional de télécommunications pour la Technologie, l'enseignement et la Recherche» (National Telecommunication Network for Technology, Education and Research) (in the context of Technology) Radio Frequency Russian Federation Request For Comments Radio Frequency Interference ReFlective Memory Page 11 of 14

RFX RH RHEL RIO RJ RJH RMS RO ROM RP RPC RPM RPrS RT RWM s S&I S-ICD SAS SAT SATA SAX SCADA SCC SCCB SCI SCS SCXML SD SD SDD SDI SDK SDL SDN SDRAM SDS SER SES SFC SI SIC SIL SJC SL SLES SLS SMP SMS SMTP SN SNI SNL SNMP SNS SOA SOAP SOFT Reversed Field experiment Remote Handling Red Hat Enterprise Linux Remote I/O Registered Jack (fr.) «Réacteur Jules Horowitz» (Jules Horowitz Reactor) Root Mean Square Responsible Officer Read-Only Memory Remote Participation Remote Procedure Call Red hat Package Manager (fr.) «Rapport Préliminaire de Sûreté» (Preliminary Safety Report) Real-Time Resistive Wall Mode second Safety and Interlocks System Interface Control Document Safety And Security department Site Acceptance Test Serial ATA Simple API for XML Supervisory Control and Data Acquisition Signal Conditioning Cubicle Software Configuration Control Board Signal Conditioning Interface Supervisory Control System State Chart XML Self-Description (in the context of PCDH) Satellite Document Self-Description Data Safety Design and Integration section Software Development Kit Specification and Description Language Synchronous Databus Network Synchronous DRAM Site-wide Distribution System common SERvices group Schedule Execution System Sequential Function Chart (fr.) «Système International d'unités» (International System of units) Safety Importance Class Safety Integrity Level Signal Junction Cabinet Seismic Level SuSE Linux Enterprise Server Swiss Light Source Symmetric MultiProcessing Short Message Service Simple Mail Transfer Protocol Serial Number SDN Interface State Notation Language Simple Network Management Protocol Spallation Neutron Source Service-Oriented Architecture Simple Object Access Protocol Symposium Of Fusion Technology Page 12 of 14

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 (m 2 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- (10 12 ) T Tesla (kg s 2 A 1 ) T (in the context of Plasma physics) Tritium t tonne (10 3 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 UNICOS UNified Industrial COntrol System Page 13 of 14

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 (m 2 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 (m 2 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 (m 2 kg s 3 A 2 ) μ micro- (10-6 ) μtca Micro Telecom Computing Architecture Page 14 of 14