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This tutorial gives the difference between Quality Assurance (QA) and Quality Control (QC)  

Quality Assurance (QA) Quality Control (QC)
  • It is a procedure that focuses on providing assurance that quality requested will be achieved
  • It is a procedure that focuses on fulfilling the quality requested.
  • QA aims to prevent the defect
  • QC aims to identify and fix defects
  • It is a method to manage the quality- Verification
  • It is a method to verify the quality-Validation
  • It does not involve executing the program
  • It always involves executing a program
  • It's a Preventive technique
  • It's a Corrective technique
  • It's a Proactive measure
  • It's a Reactive measure
  • It is the procedure to create the deliverables
  • It is the procedure to verify that deliverables
  • QA involves in full software development life cycle
  • QC involves in full software testing life cycle
  • In order to meet the customer requirements QA defines standards and methodologies
  • QC confirms that the standards are followed while working on the product
  • It is performed before Quality Control
  • It is performed only after QA activity is done
  • It is a Low Level Activity, it can identify an error and mistakes which QC cannot
  • It is a High-Level Activity, it can identify an error that QA cannot
  • Its main motive is to prevent defects in the system. It is less time-consuming activity
  • Its main motive is to identify defects or bugs in the system. It is more time-consuming activity
  • QA ensures that everything is executed in the right way, and that is why it falls under verification activity
  • QC ensures that whatever we have done is as per the requirement, and that is why it falls under validation activity
  • It requires involvement of the whole team
  • It requires involvement of Testing team
  • Statistical technique applied on QA is known as SPC or Statistical Process Control (SPC)
  • Statistical technique applied on QC is known as SQC or Statistical Quality Control

 

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