| SAS | Sales Accounting System |
| AAS | Automatic Accounting System [engl.] System zur automatischen Abrechnung |
| BAS | Business Accounting System [engl.] Buchhaltungs-Software |
| MAPICS | Manufacturing, Accounting and Production Information Control System [IBM] |
| FA | Finance Accounting [Sun] |
| OJT | On-the-Job Training |
| PMA | Performance Management and Accounting |
| IAS | International Accounting Standard |
| EAM | Electronic Accounting Machinery |
| GAO | Government Accounting Office |
| GAO | General Accounting Office |
| TTT | Teleteaching and Training |
| ATI | Andromeda Training, Inc |
| WBT | Web Based Training Web-basierte Ausbildung/ Übung |
| AAA | American Accounting Association [engl.] http://aaahq.org |
| AMA | Automatic Message Accounting [engl.] |
| AAA | Authentification, Authorisation, Accounting [engl.] Netzwerk-Server-Funktionen |
| AAIC | Accounting Authority Identification Code Abrechnungskennung bei Gesprächsanmeldung über eine Küstenfunkstelle |
| GAAP | Generally Accepted Accounting Principles |
| APB | Accounting Priciples Board [engl.] |
| TTI | Teaching, Training, and Information |
| CVT | Continuing Vocational Training Betriebliche Weiterbildung |
| IBT | Internet Based Training |
| ATS | Advanced Training Solution |
| ATQ | Ausbildung Training Qualifizierung EU-Projekt zur Förderung berufstätiger Arbeitnehmer |
| UMT | Universal Military Training |
| CTB | Computer Based Training |
| ACT | Advanced Communication for Training |
| MAT | Mentales Aktivierungs-Training |
| OTS | Officers' Training School |
| CAMA | Centralized Automatic Message Accounting [engl.] |
| BARG | Billing and Accounting Roaming Group [engl.] Organisation der Mobilfunkbetreiber |
| amat | Automatic Message Accounting Transmitter [engl.] |
| SITC | Sustainable Internet Training Center |
| ECET | European Centre for Education and Training |
| CATC | Cisco Academy Training Center |
| ROTC | Reserve Officers' Training Corps |
| ERMA | Electronic Recording Method, Accounting [General Electric] |
| CAO | Chief Administrative OfficerChief Accounting Officer [engl.] VerwaltungschefChef-Buchhalter |
| cbt | Computer Based Training Lernprogramnm-Datei eine Dateiendung |
| BEST | Borland Enhanced Support and Training [engl.] Firmenbezeichnung für verbesserte Unterstützung und Schulung |
| ASTD | American Society for Training and Development [engl.] http://www.astd.org |
| AATP | Authorized Academic Training Provider [engl.] Microsoft-Programm zur Unterstützung bei der MS-Office-Ausbildung |
| CITAB | Computer Instruction and Training Assistance for the Blind |
| ICARE | ISO 9000 on-demand, Consulting And Remote Electronic training |
| V4FSL | System V Release 4 File System Layout |
| FSS | Fast System Switch [System V] |
| ES-IS | End System to Intermediate System Protocol [OSI] |
| ISIS | Intermediate System to Intermediate System Protocol [OSI] |
| MSS | MAN Switching System |