What is the difference between quality control(QC) and quality assurance(QA)?

First of all we should know what QC and QA is
 
Quality Control

IEEE define QC as:

A set of activities designed to evaluate the quality of developed or manufactured products.

Quality Assurance

IEEE define QA as:

A set of activities designed to evaluate the process by which products are developed or manufactured

QA
  • QA is all about Process,
  • It is Proactive approach
  • It is Staff function, all team is involved
  • It Prevents Defects from occurring
QC
  • QC is related to Product only
  • It is Reactive approach
  • It is specific to Line Function
  • QC is for to Find Defects

 Examples
QC Vs QA

QA

  • Quality Audit is QA
  • Defining Process is also QA
  • Selection of tools it comes under QA
  • Training is QA activity
  • etc

QC


  • Walkthrough is QC
  • Testing is also QC
  • Inspection is QC activity
  • Checkpoint review also in QC

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