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For questions about the project's quality, the product's quality and the process' quality, how to manage, measure and provide it.


Definition by American Society for Quality:

A combination of quantitative and qualitative perspectives for which each person has his or her own definition; examples of which include, "Meeting the requirements and expectations in service or product that were committed to" and "Pursuit of optimal solutions contributing to confirmed successes, fulfilling accountabilities". In technical usage, quality can have two meanings:

  • The characteristics of a product or service that bear on its ability to satisfy stated or implied needs;
  • A product or service free of deficiencies.

Definition by ISO 9000:

Degree to which a set of inherent characteristics fulfills requirements.

Definition by Six Sigma:

Number of defects per million opportunities.


See also