DRE

what is defect removal efficiency(DRE). Explain or if u have any doc pls share.

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Permalink Reply by Jelissa Dsouza on June 30, 2010 at 1:02pm

DRE is a measure to detect defects before delivery.It is calculated as a percentage of the defects identified and corrected internally with respect to the total defects in the complete project life cycle. Thus, DRE is the percentage of bugs elimiated by reviews, inspections, tests etc.

DRE= (Defect Found by Internal Team/Total no of defects found) * 100

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Permalink Reply by Ramakrishnareddy on June 30, 2010 at 1:33pm

Thanks for reply Jelissa

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Permalink Reply by Babu on July 6, 2010 at 5:52pm

DRE = A/A+B
A-> Defects found by the testing team while doing testing
B-> Defects found by the customers.

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Permalink Reply by Sudha Ankireddy on July 28, 2010 at 5:47pm

Hi Ramakrishna,

Defect removal efficiency (DRE) = (E/ E+D) x 100 where
E = Pre-delivery errors (detected during all QC / QA) activities
D= Post –delivery Defects

Objective: - Reduce Pre and Post Delivery Defects in all Deliveries. Indicates the efficiency of defect removal methods, as well as indirect measurement of the quality of the product.

Unit: - %

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Permalink Reply by Abhijeet Bhagat on July 29, 2010 at 2:05am

Aren't All definitions given below relate to Defect Detection Efficency?
its essential to understand the perspective of DDE vis a vis to DRE though the formulae remains same!!!