Abbreviations

ACSE	Association Control Service Element
AES	Advanced Encryption Standard
ANSI	American National Standards Institute
API	Application Programming Interface
API/CS	Application Programming Interface/Communication System
APPC	Advanced Program-to-Program Communication
APPN	Advanced Peer-to-Peer Networking
ARP	Address Resolution Protocol
ASCII	American Standard Code for Information Interchange
ASECO	Advanced Security Control
ASN	Abstract Syntax Notation
ATM	Asynchronous Transfer Mode
BCAM	Basic Communication Access Method
BSI*	Bundesamt für Sicherheit in der Informationstechnik (German Federal Office for Information Security)
CAE	Common Application Environment
CCP	Communication Control Program
CCS	Coded Character Set
CCSN	Coded Character Set Name
CDDI	Copper Distributed Data Interface
CEN	Comité Européen de Normalisation (European Committee for Standardization)
CENELEC	Comité Européen de Normalisation Électrotechnique (European Committee for Electrotechnical Standardization)
CICS	Customer Information Control System (IBM)
CMX	Communication Manager Unix Systems
COM	Communication Port (asynchronous)
CPX	Compact Packet Exchange
CSV	Character Separated Values
DAS	Data Access Service
DAP	Directory Access Protocol
DBA	Data Base Access Service
DCAM	Data Communication Access Method
DCE	Data Communication Equipment
DCE	Distributed Computing Environment (OSF)
DCM	Data Communication Method
DES	Data Encryption Standard
DFR	Document File Retrieval
DFS	Distributed File System (DCE)
DIN*	Deutsches Institut für Normung (German standards institute)
DME	Distributed Management Environment
DMS	Data Management System
DNS	Domain Name Service
DOS	Disk Operating System
DSA	Directory System Agent
DSC	Data Stream Compatibility
DSM	Distributed Systems Management
DSP	Directory System Protocol
DSSM	Dynamic Subsystem Management
DTE	Data Termination Equipment
DTS	Distributed Time Service
EBCDIC	Extended Binary-Coded Decimal Interchange Code
EN	European Norm
ENV	Europäischer Normen-Vorschlag * (European prestandard)
EPHOS	European Procurement Handbook for Open Systems
ERMS	Entity Relationship Management System
ES	End System
ETSI	European Telecommunication Standards Institute
EWOS	European Workshop for Open Systems
FADU	File Access Data Unit
FDDI	Fiber Distributed Data Interface
FEP	Front End Processor
FJAM	File Job Access Method
FMLI	Form and Menu Language Interpreter
FSB	Forwarding Support Information Base
FSS	Forwarding Support Service
FT	File Transfer
FTAC	File Transfer Access Control
FTAM	File Transfer, Access and Management (ISO 8571)
FTP	File Transfer Protocol
FTPS	FTP via SSL / TLS
GOSIP	Government OSI Profile
GPL	Gnu Public License
GSM	Global System for Mobile Communication
HDLC	High Level Data Link Control (ISO 7776)
HNC	Highspeed Net Connect
HPFS	High Performance File System
HTTP	Hypertext Transfer Protocol
IBM	International Business Machines Corporation
ICC	Intelligent Communication Controller
ICMP	Internet Control Message Protokoll
IEC	International Electrotechnical Commission
IEEE	Institute of Electrical and Electronic Engineers
IGMP	Internet Group Management Protocol
IMS	Information Management System (IBM)
IP	Internet Protocol
ISAM	Index Sequential Access Method
ISDN	Integrated Services Digital Network
ISO	International Organization for Standardization
IT	Information Technology
ITSEC	Information Technology Security Evaluation Criteria (Europe, White Book)
ITU	International Telecommunication Union
JCL	Job Control Language
LAN	Local Area Network
LMS	Library Maintenance System
LU	Logical Unit
MAC	Medium Access Control
MAN	Metropolitan Area Network
MCR	Magnetic Card Reader
MIB	Management Information Base
MLC	Modular LAN Connect
MSV*	Mittelschnelles Synchron Verfahren (Medium-fast synchronous method)
MVS	Multiple Virtual System
NCP	Network Control Program (SNA)
NCS	Network Control System
NDMS	Network Data Management System
NEA	(Name der TRANSDATA-Architektur von Siemens)
NFS	Network File System
NIS	Network Information Service
NTP	Network Time Protocol
ODI	Open Data Link Interface
ODI	Open Device Interface
ODL	Object Description Language
OSI	Open Systems Interconnection
OSS	OSI Session Service
PAM	Pluggable Authentication Modules
PC	Personal Computer
PCMX	Portable Communication Manager Unix Systems
PDU	Protocol Data Unit
PEM	Privacy Enhanced Mail
PICS	Protocol Implementation Conformance Statement
PIN	Personal Identification Number
PKCS	Public Key Cryptography Standards
PLAM	Primary Library Access Method
POP	Post Office Protocol
POSIX	Portable Operating System Interface for Open Systems
PSDN	Packet Switched Data Network
PU	Physical Unit
RFC	Request for Comments
RFC1006	Request for Comments 1006
RJE	Remote Job Entry
RPC	Remote Procedure Call
RMS	Reliant Monitor Services
RTS	Reliable Transfer Service
SAM	Sequential Access Method
SAP	Server Advertising Protocol (NetWare)
SAP	Service Access Point (OSI)
SCM	Software Configuration Management
SDF	System Dialog Facility
SDLC	Synchronous Data Link Control
SESAM*	System zur Elektronischen Speicherung Alphanumerischer Merkmale (Database System running on BS2000 Systems)
SMF	Service Management Facility (Solaris)
SMF	System Management Facility (IBM)
SMTP	Simple Mail Transfer Protocol
SNA	Systems Network Architecture
SNMP	Simple Network Management Protocol
SNPA	Subnetwork Point of Attachment
SQL	Structured Query Language
SSL	Secure Socket Layer
TCP	Transmission Control Protocol
TCP/IP	Transmission Control Protocol/Internet Protocol
TELNET	Telecommunications Network Protocol
TFTP	Trivial File Transfer Protocol
TID	Transport Identification
TLS	Transport Layer Security
TNSX	Transport Name Service in Unix systems
TPI	Transport Protocol Identifier
TS	Transport System
UDP	User Datagram Protocol
UDS	Universal Database System
URL	Uniform Resource Locator
UTM	Universal Transaction Monitor
VDE*	Verband deutscher Elektrotechniker (German electrical engineers association)
WAN	Wide Area Network
WS	Workstation
XDR	External Data Representation
XDS	API to Directory Service

* German abbreviation