Difference between Quality Assurance,Quality Control & Testing

Difference between

Quality Assurance, Quality Control & Testing

Quality Assurance	Quality Control	Testing
Activities which ensure the implementation of processes, procedures, and standards in context to verification of developed software and intended requirements.	Activities which ensure the verification of developed software with respect to documented (or not in some cases) requirements.	Activities which ensure the identification of bugs/error/defects in the Software.
Focuses on processes and procedures rather than conducting actual testing on the system.	Focuses on actual testing by executing Software with intend to identify bug/defect through implementation of procedures and process.	Focuses on actual testing.
Process-oriented activities.	Product-oriented activities.	Product-oriented activities.
Preventive activities	It is a corrective process.	It is a preventive process
It is a subset of Software Test Life Cycle (STLC)	QC can be considered as a subset of Quality Assurance.	Testing is a subset of Quality Control.

Note for me:

implementation: thực hiện

standards: tiêu chuẩn

Preventive activities: hoạt động dự phòng

corrective process: quá trình khắc phục

subset: tập con

considered: xem xét