| Abbreviation | Definition |
|---|---|
| RCR | Ruby Change Request |
| RCS | RPG Creation System |
| RCSL | Red Costarricense de Software Libre |
| RCU | Revelar Connection Utility |
| RD | Requirements Development |
| RDAL | Rational Developer for AIX and Linux |
| RDC | Report Designer Component |
| RDD | Responsibility-Driven Design |
| RDD | Resume Driven Development |
| RDDS | Revista De Desarrollo De Software |
| RDFT | Real Discrete Fourier Transform |
| RDK | Rapid Development Kit |
| RDK | Reference Design Kit |
| RDM | Reader Driver Module |
| RDP | Rapid Deployment Pack |
| RDT | Report Definition Table |
| RDVH | Remote Desktop Virtualization Host |
| RDW | Resume Deluxe Writer |
| RE | Relational Engine |
| RE | Repeat Every |