Quality Assurance vs Quality Control

What is Quality Assurance?

→ Assurance means giving a positive declaration on a process that gives confidence for the outcome and It gives a surety that the product will work without any problems as per the expectations or requests.
→ Q.A. is focused on preventing defects and It ensures that the methods, techniques, and processes are designed for the projects are implemented correctly.
→ It is a proactive approach and prevention control.

What is Quality Control?

→ Control is to check or verify the actual results of the process or product by comparing with the defined standards or specification.
→ Q.C. is focused on identifying a defect or mitch match of the specification as compared to a defined specification.
→ It ensures that the methods, techniques, and processes are designed in the project are following correctly.
→ It is a reactive approach and detection control.



Quality Assurance vs Quality Control

[01] Definition:

QA:
→ It is a set of activities that ensures the process for good output.
QC:
→ It is a set of activities that ensure the quality of the product either it is good or bad.

[2] Focused on:

QA:
→ It is focused on the prevention of defects.
→ It is a proactive approach that means it works before the final output.
QC :
→ It is focused on the identification of defects.
→ It is a reactive approach that means it works after the final output



[3] Goal:

QA:
→ The goal of QA is to develop a robust process so that the defects will not generate.
QC:
→ The goal of QC is to develop the product checking method so that the defects do not pass to the customer.

[4] Responsibility:

Q.A.:
→ Everyone from supplier to dispatch team (all team member) are responsible for that.
Q.C.:
→ Usually, a specific team is responsible for testing the product for defects before pass it to the customer.

[5] Examples:

Q.A.:
→ Process verification is an example of QA.
→ It makes sure you are doing the right things, the right way
Q.C.:
→ Product validation/testing is an example of QC.

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