Quality Assurance is Monitoring and measuring the strengths
of a development Process.
Quality Control is Validating the S/w.
QA--------->During process (what precations taken by)
Qc---------> After Process (How you performed atlast)

QA-It is a process oriented activity
QC-It is a product oriented activity

QC will never interfer with the process ,only modify the 
product,whereas QA will tell the employee to modify the 
process.

1. Quality assuarence is Process orientated and quality
control is product oreinted.

2. Quality assuarence  prevents the defects. 
Quality control detects the defects.

3. Quality assuarence is line function.
Quality control is staff function.

Murali
dharanmu@yahoo.com

QA is a preventive method and QC is a detective method.

QA sets up process, improves process and identifies defects 
in process. 

QC is concerned with the product the process produces.

QA can be called as control over QC.

QA Is Process to Prevent The Defects throgh Reviews
Walk Thruoghs,Unit Testing,Integration Testing.

QC Is Process to Correct The Defects Through Black Box
Testing.

QA: Its looking at improving the whole developement process 
to make it run smoothly and effectively. QA is all about 
process.

QC: is to check that certain levels of quality are observe 
as a result of the improvement that have been made to the 
process. QC is all about product

QA:A planned and systematic set of activities necessary to
provide adequate confidence that requirements are properly
established and products or services conform to specified
requirements.
	

QC:The process by which product quality is compared with
applicable standards; and the action taken when
nonconformance is detected.

QA:An activity that establishes and evaluates the processes
to produce the products.
	

QC:An activity which verifies if the product meets
pre-defined standards.

QA:Helps establish processes.
	

QC:Implements the process.

QA:Sets up measurements programs to evaluate processes.
	

QC:verifies if specific attribute(s) are in a specific
product or service

QA:Identifies weaknesses in processes and improves them.
	

QC:Identifies defects for the primary purpose of correcting
defects.

QA is the responsibility of the entire team.
	

QC is the responsibility of the tester.

Prevents the introduction of issues or defects
	

Detects, reports and corrects defects

QA evaluates whether or not quality control is working for
the primary purpose of determining whether or not there is a
weakness in the process.
	

QC evaluates if the application is working for the primary
purpose of determining if there is a flaw / defect in the
functionalities.

QA improves the process that is applied to multiple products
that will ever be produced by a process.
	

QC improves the development of a specific product or service.

QA personnel should not perform quality control unless doing
it to validate quality control is working.
	

QC personnel may perform quality assurance tasks if and when
required.