| Patterns - | (Software Engineering) a stylized description or characterization of a software problem or capability and/or the manner in which a solution to the problem or capability may be characterized, applied, and implemented |
| PDL - | (Software Engineering) program design language; a combination of natural language with programming language-like constructs |
| Preliminary design - | (Software Engineering) creates representation of the data and architecture |
| Procedural design - | (Software Engineering) creates representations of algorithmic detail within a module |
| Processing narrative - | (Software Engineering) a natural language description of a model (program component) |
| Project database - | (Software Engineering) the place where configuration items are kept |
| Project Plan - | (Software Engineering) a description of the management approach for a project |
| Project size - | (Software Engineering) an indication of the overall effort to be expended or the number of people working on the project |
| Prototyping - | (Software Engineering) the creation of a mock-up of an application |
| 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 |