Free Engineering Workbench calculator

Defect density and severity index

Track defects per size of code delivered and how severe they are, release by release.

Open Defect density and severity index in the live, interactive calculator — type your numbers, see the result instantly.

Open live calculator →
Quality & testing

How it's worked out

  • Density = defects ÷ KLOC. Severity index = (10 × critical + 5 × high + 2 × medium + low) ÷ KLOC
  • Weights platform-defined
NoteLines of code differ by language, so compare density only within the same codebase. The 10/5/2/1 weights are platform-defined.

Source: IEEE 982.1 measures for reliable software (defect density concept)

Need help acting on this number?

VVnT SeQuor's Digital Testing & Automation practice helps teams turn this metric into a plan.

Talk to us →

Related calculators