Similar Quality Terms

Some terms associated with quality management systems have similar meanings and can be easily confused. For example, what is the difference between Rework andRepair?

Rework is the action taken on a nonconforming product to make it conform to the product requirements.

Repair is the action taken on a nonconforming product to make it acceptable for the intended use. Unlike rework, repair can affect or change parts of the nonconforming product, e.g., as part of maintenance.

Other terms that might be confused:

Efficiency and Effectiveness

Efficiency is the relationship between the result achieved and the resources used. So, being efficient accomplishes an activity with a minimum expenditure of time and effort.

Effectiveness is the extent to which planned activities are realized and planned results are achieved. So, being effective produces the intended or expected result.

Verification and Validation

Verification is the confirmation, through objective evidence, that specified requirements have been met.

Verification can include activities such as performing alternative calculations, comparing a new design specification with a similar proven design specification, undertaking tests and demonstrations, and reviewing documents prior to issue.

Validation is the confirmation, through objective evidence, that the requirements for a specific intended use or application have been met. The use conditions for validation can be real or simulated.

Correction and Corrective Action

Correction is the action to eliminate a detected nonconformity. For example, a correction can be rework. The correction fixes the problem and the corrective action prevents the problem from happening again.

Corrective Action is the action to eliminate the cause or causes of a detected nonconformity or other undesirable situation. Corrective action is taken to prevent recurrence of the detected problem. Preventive action is taken to prevent occurrence of a potential problem.

You can see a glossary of terms at our web site to view the definitions of key quality and auditing terms.