| ERE | Entity-Relationship Editor |
| ERA | Entity-Relationship-Attribute |
| ERD | Entity-Relationship Diagram |
| ERD | Entity Relationship Diagram |
| ERM | Entity-Relationship-Modeling |
| ERM | Entity/Enterprise Relationship Model |
| AREP | Application Relationship Endpoint Aus Feldbusnorm IEC 61158 |
| CRM | Customer Relationship Management |
| LDR | Long Distance Relationship |
| ERM | Employee Relationship Management |
| LFER | Linear Free Energy Relationship |
| BRM | Bewerber Relationship Management [dt.-engl.] |
| LSER | Linear Solvation Energy Relationship |
| ARPM | Application Relationship Protocol Machine [engl.] Aus Feldbusnorm IEC 61158 |
| NET | Network Entity Title |
| LME | Layer Management Entity |
| HEM | High-level Entity Management |
| SMAE | Systems Management Application Entity |
| CCE | Connection Control Entity [engl.] |
| ECM | Entity Connection/Coordination Management |
| AET | Application Entity Title [engl.] |
| Mod. | Modell |
| POEM | Portable Object-oriented Entity Manager |
| ERO | Entity Reference Open delimiter [SGML] |
| VINCE | Vendor Independent Network Control Entity |
| SD | Structured Design |
| SA | Structured Analysis |
| SSF | Structured Fax File |
| PST | Pre-Structured Technology |
| HEMP | High-level Entity Management Protocol [Internet] |
| HEMS | High-level Entity Management System [Internet] |
| FS | Fuchs-Sondheimer [Modell] |
| NCC | Net Charge Compensation [Modell] |
| INC | Intranuclear Cascade [Modell] |
| JSP | Jackson Structured Programming |
| SSE | Structured Source Editing |
| SBP | Structured Buffer Pool |
| SCD | Structured Charts Diagram |
| SCO | Structured Complex Object |
| SDF | Structured Display File |
| STONE | Structured and Open Environment |
| SAL | Structured Assembly Language |
| SQL | Structured Query Language |
| ISL | Imperceptible Structured Light |
| BOLAM | Italienisches Modell basierend auf dem ECMWF |
| MRN | Modified Random Network [Modell] |
| MCDW | MultiChannel Distorted Wave [Modell] |
| CLF | Cellular Ligand Field [Modell] |
| CPK | Corey, Pauling, Kultun [Modell] |
| BDM | Bockris-Devanathan-Mueller [Modell] |