Difference between Validation and Verification

Verification takes place before validation, and not vice versa. Verification evaluates documents, plans, code, requirements and specifications. Validation evaluates the product itself. The input of verification are checklists, issue lists, walkthroughs and inspection meetings, reviews and meetings. The input of validation is the actual testing of an actual product. The output of verification is a nearly perfect set of documents, plans, specifications and requirements.

Verification: is done to ensure that it meets the specifications. Validation: is done to ensure that it meets the customer requirements.

Vefication: Checks consistency of the application with the i/p Validation: Checks Consistency of the application with the User Requirements.

Verification : Are we building the product right.

Validation : Are we building the right product.

Verfication comes after the validation.

Verification is examination of process and validation is execution of process.

Verification is nothing but the Static Testing and Validation is nothing but the Dynamic Testing

Verification : Typically involves reviews and meetings to evaluate documents plans code requirements and specifications. This can be done with checklists issues lists walk-throughs and inspection meetings.

Validation : Typically involves actual testing and takes place after verifications are completed. Verification is a process to define pre-define activity i.e. (before testing process starts check whether all relavent documents are prepared and ensure that standard which we create to meet the requirement) to prepare a application.

Validation: it’s a process to test the application and deliver error free application