| Project database - | (Software Engineering) the place where configuration items are kept |
| Project scope - | (Software Engineering) a statement of basic requirements of the software to be built |
| Quality function deployment (QFD) - | (Software Engineering) a technique that translates the needs of a customer in technical requirements for software by assessing the value of each requirement |
| Quality metrics - | (Software Engineering) measures of quality |
| Refactoring - | (Software Engineering) changing software in a way that improves its internal structure but does not change it external behavior; often conducted iteratively as design evolves into code. |
| Regression testing - | (Software Engineering) tests that are conducted repeated to ensure that a change has not introduced side effects |
| Reliability - | (Software Engineering) a measure of the degree to which software operates reliably over some period of time |
| Reverse engineering - | (Software Engineering) trying to develop design models or an understanding of design using program code as a starting point |
| Security testing - | (Software Engineering) testing tasks that probe the vulnerability of both client-side and server-side software |
| Six sigma - | (Software Engineering) a widely used strategy for statistical quality assurance |