MCQ IN COMPUTER SCIENCE & ENGINEERING

Detailed explanation-1: -Defect Removal Efficiency relates to the ability to remove defects introduced to a system by a project during the project life cycle. At its simplest DRE can be expressed as a percentage where DRE = (total defects found during the project/total defects introduced by the project)x 100.

Detailed explanation-2: -DRE is calculated as the correlation of bugs detected internally (by testers and software testing) with the amount of bugs that were detected externally (by users). DRE’s formula: DRE= (Number of defects found internally/ Number of defects found internally + Number of defects found externally) × 100.

Detailed explanation-3: -Defect removal efficiency (DRE) – Purpose of DRE is to judge productivity in terms of delivery with better/agreed quality. Delivering new feature as well removing defects from developed feature.

Detailed explanation-4: -What is Defect Detection Efficiency? Defect Detection Efficiency (DDE) of a phase is the ratio of the number of defects detected in a phase to the total number of defects, expressed as a percentage. DDE is used to measure the effectiveness of each phase. DDE = (Defects found in that phase ÷ Total defects) x 100.