| Data warehouse - | (Software Engineering) a large, independent database that has access to databases that serve many different applications that are required by a business |
| Debugging - | (Software Engineering) the activity associated with finding and correcting an error or defect - a lack of conformance to requirements found in the software after delivery to the customer |
| Defect amplification - | (Software Engineering) when a defect is introduced early in the software process and remains undetected, it often is amplified into multiple defects later in the software process |
| 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 |
| Detail design - | (Software Engineering) a design activity that focuses on the creation of an algorithm |
| 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 |
| Estimation - | (Software Engineering) a project planning activity that attempts to project effort and cost for a software project |
| Extreme programming - | (Software Engineering) an agile process model that emphasizes scenario-based planning, incremental delivery, refactoring, pair programming and continuous testing. |