What are the differences between cation, validation, and qualification?

Verification = Verification
Validation = approval
Qualification = Qualification

 

Verification verifies whether the specified requirements are met by providing objective evidence, that is, comparison between input and output.
Validation is to confirm whether the expected use and application requirements are met on the basis of the verification, that is, during validation, it should be considered that the range of conditions for use and application should be far greater than the range determined during input. it is generally executed by a customer or representative of a customer.

Verification and validation
It has been about a month since I changed to tester. My mentor is far away from the United States, and I remember the first guide. He called the ocean to say that tester should not only test the right and wrong, it also focuses on whether it is effective. In other words, this article describes verification and validation. Verification is correct, while validation is to see if verification is what we want. Verificaiton is what we can foresee and know what we expect before testing. For example, if I am looking for GF, the other party is a female first, if (person. Gender! = Female) return false; for IC, card reader chips must be able to read the corresponding digital card; for sales, the monthly sales for performance evaluation is the verification standard, is verification rational thinking more emotional. 1 is 1, 2 is 2. The first premise of validation is verification. What is important is whether it is required by the customer. Taking the three examples just now, I believe that anyone looking for an object will not only need one opposite sex. Verify the validation and check whether it is your favorite; whether the IC is made and whether the market really needs it. In addition to sales, whether to make customers buy the right products, whether to increase customer loyalty, and whether to meet customers' habits should be the validation process. It can be said that validation is more emotional and difficult to grasp. After all, think from others is very difficult. Looking at Windows XP, although the security problem persists, many users will not hesitate to abandon Win98. In fact, after investigation, most of the reasons are that the interface is much more beautiful and friendly than before. In addition, it is consistent with the previous version to the maximum extent for most people. Microsoft's fear lies not in technology, but in its ability to make us get used to habits that are hard to change, but in understanding customers' habits and attitudes, this is an extremely high level of validation. Not to mention. There will be another wedding next weekend. We can see that a new couple have gone through verifiaction and validation.

 

 

Verification: You built it right Validation: You built the right things The simpler the things, the more difficult it is to differentiate, especially in software development applications with deep technology. Verification and validation both implement software defect management (or risk testing) The roles for the two tests are different, similar to the differences between the white-box test and the black-box test. In verification, you need to confirm that you are doing the right thing, and you need to verify according to the white box test requirements and procedures (?) What you do is correct In validation, we confirm that the product is correct (as we can imagine), which is similar to the black box test, test whether each part of the function can achieve the expected results, rather than looking into the specific execution process of the program The results of the two may be very similar, but there is a big difference in significance. One is from the perspective of product developers, and the other is from the perspective of end customers (product users. like the "Information Asymmetry" principle in western economics, the activities of product producers in product R & D and testing are similar to verification, and consumers cannot have such detailed information and data in actual use by producers, they can only confirm whether they meet their expectations based on some product specifications provided by the producer, similar to validation From: http://blog.sina.com.cn/s/blog_5606a20b010005kf.html