Difference Between Verification And Validation
Verification and Validation example is also given just below to this table.
Similarly Validation of the software is done to make sure that the software always meets the requirements of the customer by executing the specifications of the project and product.
Note that the customer and end users are concerned in validation of the software.
It is also crucial to differentiate between end users, and customers. Considering example, if you are developing a library monitoring system, the librarian is the client and the person who issue the books, collect fines etc. are comes under the category of the end users.
Verification
|
Validation
|
1. Verification is a static practice of verifying documents, design, code and program.
|
1. Validation is a dynamic mechanism of validating and testing the actual product.
|
2. It does not involve executing the code.
|
2. It always involves executing the code.
|
3. It is human based checking of documents and files.
|
3. It is computer based execution of program.
|
4. Verification uses methods like inspections, reviews, walkthroughs, and Desk-checking etc.
|
4. Validation uses methods like black box (functional) testing, gray box testing, and white box (structural) testing etc.
|
5.
|
5.
|
6. It can catch errors that validation cannot catch. It is low level exercise.
|
6.
|
7.
|
7.
|
8.
|
8. Validation is carried out with the involvement of testing team.
|
9. It generally comes first-done before validation.
|
9. It generally follows after verification.
|
Suppose we have the specifications related to the project than by checking that specifications without executing to see whether the specifications are up to the mark or not is what we have done in verification.
Similarly Validation of the software is done to make sure that the software always meets the requirements of the customer by executing the specifications of the project and product.
Note that the customer and end users are concerned in validation of the software.
It is also crucial to differentiate between end users, and customers. Considering example, if you are developing a library monitoring system, the librarian is the client and the person who issue the books, collect fines etc. are comes under the category of the end users.
Techniques or Methods of Verification and Validation
Methods of Verification
1. Walkthrough
2. Inspection
3. Review
Methods of Validation
1. Testing
2. End Users
Conclusion:
1) Verification and Validation both are necessary and complementary.
2) Both of them provides its own sets of Error Filters.
3) Each of them has its own way of detect out the errors left in the software.
3) Each of them has its own way of detect out the errors left in the software.
Lots of people use verification and validation interchangeably but both have different meanings.
Verification process describes whether the outputs are according to inputs or not, and
Validation process describes whether the software is accepted by the user or not.
Verification process describes whether the outputs are according to inputs or not, and
Validation process describes whether the software is accepted by the user or not.
Note:
If you remain have any problem regarding Difference between Verification and Validation than you can definitely discuss with me in comments section below.
Category: Verification and Validation, Verification and Validation Example., Verification vs Validation
0 comments