| Maintainability - | (Software Engineering) the degree to which a program is amenable to change |
| Modularity - | (Software Engineering) an attribute of a design that leads to the creation of high quality program components |
| Objects - | (Software Engineering) a named element of the problem domain containing data and processing |
| OCL (Object Constraint Language) - | (Software Engineering) a supplement to UML, this formal language allows a software engineer to construct unambiguous statements about the characteristics of various design model elements |
| Pair programming - | (Software Engineering) two people work together (side-by-side) to design and construct a software component, providing real-time problem solving and quality control. |
| PDL - | (Software Engineering) program design language; a combination of natural language with programming language-like constructs |
| Process framework - | (Software Engineering) a relatively small set of fundamental software engineering activities that define a software process |
| Processing narrative - | (Software Engineering) a natural language description of a model (program component) |
| Reusability - | (Software Engineering) the ability to reuse an already-existing program component in another application |
| Reverse engineering - | (Software Engineering) trying to develop design models or an understanding of design using program code as a starting point |