Explain Difference between QA Quality Assurance and QC Quali

Explain Difference between QA (Quality Assurance) and QC (Quality Control). What are verification and validation and difference between these two? What can be done if requirements are changing continuously? Give me five common problems that occur during software development. Have you written Test Plan? What is a Test Plan? What does it include? What is a Test Plan?

Solution

1. Difference between QA and QC:

2. Verification: Verification is a process of estimating the intermediate work products of a software development lifecycle to ensure if the process is in the right track of generating the final product.

Validation: Validation is the process of estimating the final product to make sure whether the software meets the business requirements. The test execution which is carried out in day to day life are in fact the validation action which contain smoke testing, practical testing, degeneration testing, systems testing etc.

Difference between Verification and Validation:

Quality Assurance	Quality Control
1. QA is the process which is calculated on providing guarantee that quality request will be attained.	1. QC is the process which is calculated on satisfying the quality request.
2. The goal of QA is to avoid the defect.	2. The goal of QC is to recognize and develop the defect.
3. It is a method of managing the quality.	3. Thios is the method to verify the quality.
4. QA does not engage executing the program.	4. QC always involve executing the program.
5. All team members are responsible for QA.	5. Only the testing team is responsible for QC.
6. Example of QA is Verification.	6. Example of QC is Validation.
7. This is the planning for running the process.	7. This is an action for executing the planned process.
8. The statistical method used on QA is called Statistical Process Control.	8. The statistical method used on QC is called Statistical Quality Control.
9. QA defines the principles and methods to be followed to meet the customer requirements.	9. This makes sure whether the principles are followed during the process.