Quality Assurance vs Quality Control

Quality Assurance vs Quality Control

As per ISO 9000:2015 Definition of Quality Assurance

and Quality Control is as mentioned below;

Quality Assurance:

A part of Quality Management which

focuses on providing confidence that Quality Requirements

will be fulfilled.

Quality Control:

A part of Quality Management which focuses on fulfilling Quality Requirements.

Focus of QA & QC

Quality Assurance

To prevent occurrence of Defects in the Process. (i.e.

before the product is being manufactured). It is

a Proactive part of Quality Management. It focuses

on Process.

Quality Control

To identify and correct the defects in the product (i.e.

after the product is manufactured).

It is a Re-active part of Quality Management. It focuses

on Product.

Goal of QA & QC

Quality Assurance

To improve development and test processes so that

defect occurrence can be prevented during

development.

Quality Control

To identify and correct the defects in the product after

development and before release.

Responsibility of QA & QC

Quality Assurance

Each and every person involved in product

development is Responsible. CFT or MDT Approach

(i.e. Production, Maintenance, Quality, Engineering

etc..)

Quality Control

Specific Team responsible for testing and inspection of

the Products. (i.e. Dimension Inspection Team, NDT

Team, Metallurgical Inspection Team etc..)

How QA & QC

Quality Assurance

Establishing Good Quality Management System.

Assessing its adequacy by periodic audits.

Quality Control

Detecting / Finding defective Products.

Correcting / Eliminating source of Defect.

Example of  QA & QC

Quality Assurance

Verification / Audit is an example of Quality

Assurance.

Quality Control

Validation / Testing is an example of Quality Control

Statistical Tools & Techniques used

for QA & QC

Same Statistical Tools and Techniques can be applied

to QA & QC Both

Quality Assurance

Statistical Tools & Techniques when applied

to Process parameters, it is known as Statistical

Process Control (SPC)

Quality Control

Statistical Tools & Techniques when applied to Product

parameters, it is known as Statistical Quality Control

(SQC)

QA & QC as a Tool

Quality Assurance

It is a Managerial Tool of Quality Management.

Quality Control

It is a Detective / Corrective Tool of Quality

Management.

Thank you………..