Verification is the process of testing a system's capabilities, which ensures that it does what it is supposed to do and does not do what it is not supposed to. Verification also ensures that all requirements are met during implementation and maintenance.
There are different types of verification activities:
Validation is the act of testing to ensure that a product, system, or procedure is working as intended. It's an important part of any software development process and can be categorized into two types:
Verification vs Validation Testing
1. Verification is the process of testing a system to ensure that it performs as expected. Validation is the process of testing a system to ensure that it performs as expected and meets all of its functional requirements.
2. The key difference between Verification and Validation is that in verification, the tester only looks at one aspect or aspect alone, whereas validation requires multiple checks on multiple aspects and functions within an application before releasing it for use by end users.
3. Validation is the process of testing to ensure that a software product meets specified requirements. It is an important step in the software development life cycle and can be used to check whether your code meets all its requirements. Validation should be conducted before you start coding or even designing your project before you begin writing unit tests and mocking up interfaces. The idea behind validation is to validate whether your code works as expected (as per specification), rather than just checking if it runs on some platform or device.
4. There are several methods used in verification. These include reviews, walkthroughs, inspections, and desk-checking. However, validation can be done by White Box Testing or non-functional testing or Black Box Testing.
5. Verification is astatic testing while the other is dynamic testing.
6. Verification checks if the software confirms specifications while the other checks the requirements and expectations of customers.
7. Verification is done by the quality assurance team while validation is done by testing teams.
8. In current agile development processes, the systems require both verification and validation activities to be taken into the account. This gives continual feedback to the testers while improving the entire code.
To conclude verification and validation testing, it can be stated that verification is the only way to know for sure if you truly implemented the code and didn't make mistakes. It is a process of testing to ensure that a system or component is functioning as intended. Before you start coding or designing your project, validate it with your stakeholders. Validation should take place before you write unit tests and mock-up interfaces. Validation is about making sure your code works as expected (as per specification), not just checking if it runs on some platform or device. If reliability and performance are top priorities (which should be) then we recommend PerfSight from WeTest, which gives developers optimize and spot potential problems in their gaming codes with the support of consoles and mobile platforms.