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defect density

📖 ISTQB Glossary

Official ISTQB Definition

The number of defects per unit size of a work product.

3 Ways to Think About It

💡
The Quick Take

The number of defects relative to the size of the software.

🔍
Look Closer

Bugs per thousand lines of code or per function point.

🎯
The Bottom Line

A quality metric that normalizes defect counts by size.

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