| Defect removal efficiency (DRE) - | (Software Engineering) a nondimension ratio (between 0 and 1) that provides an indication of the degree to which errors are removed from software before it is released to end-users |
| Design - | (Software Engineering) an activity that translates the requirements model into a more detailed model that is the guide to implementation of the software |
| Design specification - | (Software Engineering) a document that describes the design |
| Documentation - | (Software Engineering) descriptive information |
| Documents - | (Software Engineering) deliverables produced as part of the software engineering process |
| Domain analysis - | (Software Engineering) an object-oriented software engineering activity that attempts to identify classes that are relevant to an entire application domain, rather than a specific application |
| Effort - | (Software Engineering) the work-time product (e.g., person-days) associated with a project |
| Engineering change order (ECO) - | (Software Engineering) a mini-specification that describes the technical aspects of a change |
| Enhancement - | (Software Engineering) an extension of functional or performance requirements |
| Equivalence partitioning - | (Software Engineering) a black-box testing method |