| Abbreviation | Definition |
|---|---|
| ECES | Economical Civil Engineering Software |
| ECF | Enhanced Characteristic Function |
| ECFL | Extended Context Free Language |
| ECHO | Embedded Component Historic Object |
| ECI | Electronic Commerce Indicator |
| ECIS | Education Centers For Ibm Software |
| ECJ | Eclipse Compiler for Java |
| ECL | Embeddable Common Lisp |
| ECL | Esterel C Language |
| ECL | Event Communication Language |
| ECL | Execution Control List |
| ECM | Enterprise Contract Management |
| ECM | Error Correction Method |
| ECM | Excalibur Component Manager |
| eCMS | Encyclopedia Content Management System |
| ECO | Enterprise Core Object |
| ECOS | Embedded Configurable Operating System |
| ECP | Engineering Change Proposal |
| ECR | Electronic Company Registration |
| ECRT | Effort Certification and Reporting Technology |