| EPOS | Engineering and Project-management Oriented Support system |
| EAS | Engineering Administration System |
| DSS | Decision Support System |
| OSS | Office Support System |
| GSS | Group Support System |
| DSS | Decision Support System |
| LSS | Life Support System |
| MSS | Management Support System |
| DISOSS | Distributed Office Support System [IBM] |
| PLSS | Portable Life Support System |
| SSP | System Service / Support Processor |
| SSGA | System Support Gate Array |
| BSS | Business Support System [engl.] |
| BSS | Billing Support System [engl.] |
| EISS | European Intelligence Support System |
| OSS | Operational/Operator Support System |
| BOSS | Back Office Support System [engl.] |
| PDSS | Program / Post Development Support System |
| boss | Billing and Order Support System [engl.] |
| USG | UNIX Support / System Group [Novell] |
| CASSIS | Classification and Search Support Information System [engl.] |
| JCALS | Joint Computer Aided Acquisition and Logistic Support System |
| VE | Value Engineering |
| M.Eng. | Master of Engineering Akademischer Grad |
| VAVE | Value Added Value Engineering |
| NRE | Non-Recurring Engineering |
| B.Eng. | Bachelor of Engineering Akademischer Grad |
| DE | Document Engineering |
| EM | Engineering Model |
| TE | Traffic Engineering |
| SLS | Second Level Support Hilfeleistung/Unterstützung zweiter Kategorie [z.B. bei einer Hotline] |
| SEE | Software Engineering Environment |
| ESD | Engineering Service Division |
| OEP | Object Engineering Process |
| R&SE | Research & Systems Engineering |
| EDM | Engineering Data Management |
| EWS | Engineering Work Station |
| IDE | Interactive Design and Engineering |
| IDE | International Divecompressors Engineering |
| IEF | Information Engineering Facility |
| APE | Application Engineering [engl.] |
| IEC | International Engineering Consortium |
| HFE | Human Factors Engineering |
| EWO | Engineering Work Order |
| ECR | Engineering Change Request |
| GEP | Good Engineering Practice |
| ECO | Engineering Change Order |
| NAE | National Academy of Engineering Washington, DC, http://www.nae.edu |
| ETR | Engineering Test Reactor |
| ES&D | Engineering Service Division |