Defect Removal Efficiency in Project Management

Defect Removal Efficiency (DRE) is a significant Key Performance Indicator (KPI) in Project Management. It measures the effectiveness of the defect removal process during project development.

This KPI is especially vital in software and product development projects. It helps project managers assess the quality of their testing and debugging processes. A high Defect Removal Efficiency indicates a strong quality control process in place, ensuring fewer defects in the final output.

Calculation of Defect Removal Efficiency

Defect Removal Efficiency is calculated as the proportion of defects successfully removed during a phase to the total number of defects present at the beginning of the phase and those introduced during the phase.

Here is the formula for calculating Defect Removal Efficiency:

Defect Removal Efficiency = (Number of Defects Removed During a Phase / Total Defects at the Beginning and Introduced in the Phase) * 100

In this formula:

• Number of Defects Removed During a Phase is the total count of defects identified and eliminated in a specific phase of the project.
• Total Defects at the Beginning and Introduced in the Phase is the total number of defects that were present at the beginning of the phase and those introduced during the phase.

The Defect Removal Efficiency is expressed as a percentage. A higher percentage implies better defect removal efficiency and thus, higher software or product quality.

By closely monitoring Defect Removal Efficiency, project managers can better understand the effectiveness of their quality control processes and take necessary actions to improve project quality.