System quality control and assurance

System quality control & assurance:

When a system is designed, it must fulfil the goal of the organization so some control must be developed to ensure a quality system.

            Quality assurance defines the objectives of the system that is what is expected from the system. Quality assurance activity in the system development involves four types of sub activities –

                               I.            Verification-

It is a process of confirmation as what is supplied as per system specification to the system. Verification controls are carried out under given environment and test results are obtained for acceptance of the new system.

                             II.            Validation-

Validation is a process of using system in actual environment in order to find errors and checks whether the validations applied to the system are working properly or not. If the results obtained from the system are proper, the system is valid otherwise it is not valid.

                          III.            System testing-

It is a review of specification, design and coding. It may be based on feedback obtained from the users.

                          IV.            Certification-

It is a confirmation of the correctness of the program. It provides authenticity of the system design that whether the system is according to its predefined standards and objectives or not.