Quality Assurance 

QAQuality Assurance – is defined as all the planned and systematic activities implemented within the quality system and demonstrated as needed, to provide adequate confidence that an entity will fulfil requirements for quality.

An entity can be an activity, a process, a product, an organisation, a system or a person or a combination of these. The quality of an entity is the totality of characteristics which bear on its ability to satisfy stated and implied needs.

What this means is that QA is all the activities that have been shown to be required to provide adequate confidence that a product or service will meet both the stated and implied needs of the product or service and that these activities are implemented in a planned and controlled manner.

For more information on QA see:

For guides on quality management generally:

For information on QA and NDT and the NDT Quality Infrastructure model in particular see:

A more detailed description of the model can be found in:
Pressure Equipment Technology, Theory & Practice Conference, Ed. W M Banks & D H Nash, Professional Engineering Publishers, May 2003

Please contact the editor at if you have difficulty getting the NDT model reference.

The European Federation for NDT (EFNDT) has initiatives on Quality in NDT. Find details in the strategic plan at:

What the hec?! articles are not intended to be the definitive account on the topic or acronym in question. Readers’ comments and contributions are welcomed. Email: