Verification ensures the product is designed to deliver all functionality to the customer; it typically involves reviews and meetings to evaluate documents, plans, code, requirements and specifications; this can be done with checklists, issues lists, walkthroughs and inspection meetings. You CAN learn to do verification, with little or no outside help.
Validation ensures that functionality, as defined in requirements, is the intended behavior of the product; validation typically involves actual testing and takes place after verifications are completed.
Difference between Verification and Validation:
Verification takes place before validation, and not vice versa. Verification evaluates documents, plans, code, requirements, and specifications. Validation, on the other hand, evaluates the product itself. The inputs of verification are checklists, issues lists, walkthroughs and inspection meetings, reviews and meetings. The input of validation, on the other hand, is the actual testing of an actual product. The output of verification is a nearly perfect set of documents, plans, specifications, and requirements document. The output of validation, on the other hand, is a nearly perfect, actual product.
Validation ensures that functionality, as defined in requirements, is the intended behavior of the product; validation typically involves actual testing and takes place after verifications are completed.
Difference between Verification and Validation:
Verification takes place before validation, and not vice versa. Verification evaluates documents, plans, code, requirements, and specifications. Validation, on the other hand, evaluates the product itself. The inputs of verification are checklists, issues lists, walkthroughs and inspection meetings, reviews and meetings. The input of validation, on the other hand, is the actual testing of an actual product. The output of verification is a nearly perfect set of documents, plans, specifications, and requirements document. The output of validation, on the other hand, is a nearly perfect, actual product.
Verification ensures that the application complies to
standards and processes. This answers the question " Did we
build the right system? "
Eg: Design reveiws, code walkthroughs and inspections.
Validation ensures whether the application is built as per
the plan. This answers the question " Did we build the
system in the right way? ".
Eg: Unit Testing, Integration Testing, System Testing and
UAT. Also take note that Verification takes place before validation,and not viceversa. Verification evaluates documents,plans,code,requirement and specification.Validation evaluates product itself.The inputs for verification are checklist,issues lists,walkthroughs and inspection meetings,reviews and meetings.The input for validation is actual testing of an actual product.The output for verification is nearly perfect set of documents,plans,specificationand requirement document. The output of validation is nearly perfect product
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