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7/13/2012

What is mean bt Quality Assurance,Quality Control,Verification and Validation

Quality Assurance
A planned and systematic pattern for all actions necessary to provide adequate confidence that
the item or product conforms to established technical requirements”
 
Quality Control
QC is a process by which product quality is compared with applicable standards, and the action taken when nonconformance is detected.”
 
Quality Control is defined as a set of activities or techniques whose purpose is to ensure that all
quality requirements are being met. In order to achieve this purpose, processes are monitored
and performance problems are solved.”
 
Verification
The process of evaluating a system or component to determine whether the products of the given development phase satisfy the conditions imposed at the start of that phase.”

Validation
Determination of the correctness of the products of software development with respect to the user needs and requirements.