| 略語 | フルスペル |
|---|---|
| E-R図 | Entity Relationship diagram |
| EA | Enterprise Architecture |
| EAL | Evaluation Assurance Level |
| EAP | Extensible Authentication Protocol |
| EC | Electronic Commerce |
| ECDHE | Elliptic Curve Diffie-Hellman key exchange Ephemeral |
| ECM | Enterprise Contents Management |
| EDI | Electronic Data Interchange |
| EDSA | Embedded Device Security Assurance |
| EMS | Electronics Manufacturing Service |
| EOF | End Of File |
| EOS | Electronic Ordering System |
| ERM | Enterprise Risk Management |
| ERP | Enterprise Resource Planning |
| ESP | Encapsulating Security Payload |
| ESSID | Extended Service Set IDentification |
| ETSI | European Telecommunications Standards Institute |
| EUC | End User Computing |
| EUC（文字コード） | Extended UNIX Code |
| EVM | Earned Value Management |
| EWS | Engineering WorkStation |
| Exif | Exchangeable image file |