What is QA ( Quality assurance ), QC ( Quality control ) & QE ( Quality Engineering ) | Difference betwee QA & QC

What is QA (Quality assurance ), QC ( Quality control), & QE ( Quality engineering).

In this article, we will discuss another software testing interview question i.e what is QA, QC and QE. What is difference between QA and QC. so lets start.

What is QA :

• QA stands for quality assurance
•  It's all about the planned activities needed for giving everyone confidence in the software. Basically, it's there to keep the software's quality up to snuff.
• So, quality assurance is a process-driven method. It checks if the product development methods are correct and follow the standards. It's like a safety net, catching issues before they happen. You see, it finds problems in how we build software! Activities like reviewing documents, checking test cases, conducting walkthroughs, and inspections are all part of it.
• QA ensures that everything is executed in the right way and that is why it falls under the verification activity
• The aim of QA is to prevent the defects
• It is a preventive technique
• it is a proactive measure
• It is reponsible for the entire software developement life cycle
• It is process oriented
• Mainly focuses on building the quality
• All team member of the project is involved
• Invloves Verification activity
• It is not actual testing of software

What is QC:

• QC stands for quality control
• Quality control includes the operational actions and the techniques that are used for verifying the requirement of software
• Quality control is a product-driven approach that checks that the developed product conforms to all the specified requirements. It involves different types of testing like functional testing, performance testing, usability testing, etc
• QC ensures that whatever we have done is as per the requirement and that is why it comes under validation activity
• The aim of QC is to find the defects
• It is a corrective technique
• it is a reactive measure
• It is responsible only for testing part in SDLC
• It is product oriented
• Mainly focuses on testing for quality
• Only the testing team of the project is involved
• Involes Validation activity
• It is the actual testing of the software

Difference between QA and QC:

Parameters	QA (Quality assurance)	QC (Quality control)
Stands for	Quality Assurance	Quality control
Objective	QA ensure that everything is executed in the  right way and that is why it is fall under the verification activity	QC ensure that whatever we have done is as per the requirement and that is why it is comes under validation activity
Aim	The aim of QA is to prevent the defects	The aim of QC is to find the defects
Technique type	It is preventive technique	It is corrective technique
Measure type	it is proactive measure	it is reactive measure
Responsible	It is reponsible for entire software developement life cycle	It is reponsible only for testing part in SDLC
Oriented	It is process oriented	It is product oriented
Focus	Mainly focuses on building the quality	Mainly focuses on testing for quality
Team	All team member of the project is involved	Only testing team of the project is involved
Example	Verification activity	Validation acitivty
Testing ?	It is not actual testing of software	It is actual testing of the software
Certificates	Certicates such as ISTQB	Certicates such as ISTQB

What is QE:

• QE stands for Quality Engineering
• Quality Engineering (QE) in software testing is an extensive approach of ensuring the quality of the software compared to traditional QA(Quality Assurance) and QC (Quality Control). Growth is achieved through practices and principles that improve the quality of a software product.
• Certifications such as ASQ's Certified Quality Engineer (CQE) validate the expertise of professionals in various aspects of quality engineering principles, methodologies, and practices.
• QE is the advanced approach that extends beyond the traditional boundaries of QA

Hope you like this article!

Thanks,

Rajat Bhatti

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