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This plugin is deprecated since SonarQube 4.0. Please move to the concept of Technical Debt introduced in SonarQube 4.0.

Description / Features


The Quality Index plugin combines a global measure (quality index) of quality with a measure of the method complexity (complexity factor).

The Quality Index measures 4 weighted axes of quality and combines them to give a global note score between 0 and 10 to the project, 10 being the best.


Coverage = Code coverage by unit tests.

If there is are no unit tests and thus no code coverage, the Coverage axis will get the worst grade.


Quality Index = 10 - 4.5 * Coding - 2 * Complexity - 2 * Coverage - 1.5 * Style

Complexity Factor

The Complexity Factor measures the complexity density.