| Project Plan - | (Software Engineering) a description of the management approach for a project |
| Project planning - | (Software Engineering) the activity that creates the Project Plan |
| Project risks - | (Software Engineering) the set of potential project problems or occurrences that may cause the project to fail |
| Project scope - | (Software Engineering) a statement of basic requirements of the software to be built |
| Project size - | (Software Engineering) an indication of the overall effort to be expended or the number of people working on the project |
| Project tracking - | (Software Engineering) the activity that enables a manager to understand the status of a project |
| Project control - | (Software Engineering) the control of quality and change |
| Prototyping - | (Software Engineering) the creation of a mock-up of an application |
| Particle-Size Distribution | (Concrete Engineering) Particle distribution of granular materials among various sizes; for concrete material normally designated as gradation. Usually expressed in terms of cumulative percentages smaller or larger than each of a series of sieve openings or percentages between certain ranges of sieve openings. |
| Peeling | (Concrete Engineering) A process in which thin flakes of matrix or mortar are broken away from concrete surface; caused by adherence of surface mortar-to forms as forms are removed, or to trowel or float in portland cement plaster. |