| ACSE | Association Control Service Element | 
| AEQ | Application Entity Qualifier | 
| AES | Advanced Encryption Standard | 
| AET | Application Entity Title | 
| APT | Application Process Title | 
| ASCII | American Standard Code for Information Interchange | 
| ASE | Application Service Element | 
| Axis | Apache eXtensible Interaction System | 
| BCAM | Basic Communication Access Method | 
| BER | Basic Encoding Rules | 
| BLS | Binder-Lader-Starter (BS2000-Systeme) | 
| CCP | Communication Control Program | 
| CCR | Commitment, Concurrency and Recovery | 
| CCS | Codierter Zeichensatz | 
| CCSN | Name des codierten Zeichensatzes | 
| CICS | Customer Information Control System (IBM) | 
| CID | Control Identification | 
| CMX | Communication Manager in Unix-, Linux- und Windows-Systemen | 
| COM | Component Object Model | 
| CPI-C | Common Programming Interface for Communication | 
| CRM | Communication Resource Manager | 
| CRTE | Common Runtime Environment (BS2000-Systeme) | 
| DB | Database | 
| DBH | Database Handler | 
| DC | Data Communication | 
| DCAM | Data Communication Access Method | 
| DES | Data Encryption Standard | 
| DLS | Distributed Lock Manager (BS2000-Systeme) | 
| DMS | Data Management System | 
| DNS | Domain Name Service | 
| DSS | Datensichtstation (=Terminal) | 
| DTD | Document Type Definition | 
| DTP | Distributed Transaction Processing | 
| DVS | Datenverwaltungssystem | 
| EBCDIC | Extended Binary-Coded Decimal Interchange Code | 
| EJB | Enterprise JavaBeansTM | 
| FGG | File Generation Group | 
| FHS | Format Handling System | 
| FT | File Transfer | 
| GCM | Galois/Counter Mode | 
| GSSB | Globaler Sekundärer Speicherbereich | 
| HIPLEX® | Highly Integrated System Complex (BS2000-Systeme) | 
| HLL | High-Level Language | 
| HTML | Hypertext Markup Language | 
| HTTP | Hypertext Transfer Protocol | 
| HTTPS | Hypertext Transfer Protocol Secure | 
| IFG | Interaktiver Format-Generator | 
| ILCS | Inter Language Communication Services (BS2000-Systeme) | 
| IMS | Information Management System (IBM) | 
| IPC | Inter-Process-Communication | 
| IRV | Internationale Referenzversion | 
| ISO | International Organization for Standardization | 
| Java EE | Java Platform, Enterprise Edition | 
| JCA | Java EE Connector Architecture | 
| JDK | Java Development Kit | 
| KAA | KDCS Application Area | 
| KB | Kommunikationsbereich | 
| KBPROG | KB-Programmbereich | 
| KDCADMI | KDC Administration Interface | 
| KDCS | Kompatible Datenkommunikationsschnittstelle | 
| KTA | KDCS Task Area | 
| LAN | Local Area Network | 
| LCF | Local Configuration File | 
| LLM | Link and Load Module (BS2000-Systeme) | 
| LSSB | Lokaler Sekundärer Speicherbereich | 
| LU | Logical Unit | 
| MQ | Message Queuing | 
| MSCF | Multiple System Control Facility (BS2000-Systeme) | 
| NB | Nachrichtenbereich | 
| NEA | Netzwerkarchitektur bei BS2000-Systemen | 
| NFS | Network File System/Service | 
| NLS | Unterstützung der Landessprache (Native Language Support) | 
| OLTP | Online Transaction Processing | 
| OML | Object Modul Library | 
| OSI | Open System Interconnection | 
| OSI TP | Open System Interconnection Transaction Processing | 
| OSS | OSI Session Service | 
| PCMX | Portable Communication Manager | 
| PID | Prozess-Identifikation | 
| PIN | Persönliche Identifikationsnummer | 
| PLU | Primary Logical Unit | 
| PTC | Prepare to commit | 
| RAV | Rechenzentrums-Abrechnungs-Verfahren | 
| RDF | Resource Definition File | 
| RM | Resource Manager | 
| RSA | Encryption-Algorithmus nach Rivest, Shamir, Adleman | 
| RSO | Remote SPOOL Output (BS2000-Systeme) | 
| RTS | Runtime System (Laufzeitsystem) | 
| SAT | Security Audit Trail (BS2000-Systeme) | 
| SECOS | Security Control System | 
| SEM | SE Manager | 
| SGML | Standard Generalized Markup Language | 
| SLU | Secondary Logical Unit | 
| SM2 | Software Monitor 2 | 
| SNA | Systems Network Architecture | 
| SOA | Service-oriented Architecture | 
| SOAP | Simple Object Access Protocol | 
| SPAB | Standard Primärer Arbeitsbereich | 
| SQL | Structured Query Language | 
| SSB | Sekundärer Speicherbereich | 
| SSL | Secure Socket Layer | 
| SSO | Single-Sign-On | 
| TAC | Transaktionscode | 
| TCEP | Transport Connection End Point | 
| TCP/IP | Transport Control Protocol / Internet Protocol | 
| TIAM | Terminal Interactive Access Method | 
| TLS | Terminal-spezifischer Langzeitspeicher | 
| TLS | Transport Layer Security | 
| TM | Transaction Manager | 
| TNS | Transport Name Service | 
| TP | Transaction Processing (Transaktions-Betrieb) | 
| TPR | Task privileged (privilegierter Funktionszustand des BS2000-Systems) | 
| TPSU | Transaction Protocol Service User | 
| TSAP | Transport Service Access Point | 
| TSN | Task Sequence Number | 
| TU | Task user (nicht privilegierter Funktionszustand des BS2000-Systems) | 
| TX | Transaction Demarcation (X/Open) | 
| UDDI | Universal Description, Discovery and Integration | 
| UDS | Universelles Datenbanksystem | 
| UDT | Unstructured Data Transfer | 
| ULS | User-spezifischer Langzeitspeicher | 
| UPIC | Universal Programming Interface for Communication | 
| USP | UTM-Socket-Protokoll | 
| UTM | Universeller Transaktionsmonitor | 
| UTM-D | UTM-Funktionen für verteilte Verarbeitung („Distributed“) | 
| UTM-F | Schnelle UTM-Variante („Fast“) | 
| UTM-S | UTM-Sicherheitsvariante | 
| UTM-XML | XML-Schnittstelle von openUTM | 
| VGID | Vorgangs-Identifikation | 
| VTSU | Virtual Terminal Support | 
| VTV | Verteilte Transaktionsverarbeitung | 
| VV | Verteilte Verarbeitung | 
| WAN | Wide Area Network | 
| WS4UTM | WebServices for openUTM | 
| WSDD | Web Service Deployment Descriptor | 
| WSDL | Web Services Description Language | 
| XA | X/Open Access Interface (Schnittstelle von X/Open zum Zugriff auf Resource Manager) | 
| XAP | X/OPEN ACSE/Presentation programming interface | 
| XAP-TP | X/OPEN ACSE/Presentation programming interface Transaction Processing extension | 
| XATMI | X/Open Application Transaction Manager Interface | 
| XCS | Cross Coupled System | 
| XHCS | eXtended Host Code Support | 
| XML | eXtensible Markup Language |