🎤 Intro Line
Verification and Validation in software testing are two essential processes used to ensure the quality and functionality of a software system. Both these processes are used to check if the system is functioning as expected.
🛑 Points - Compare and Contrasted
1. Purpose: Verification is a process used to ensure that the product is designed to deliver all functionality to the customer; it is a process of checking documents, design, code and program. On the other hand, Validation is a dynamic mechanism of testing and validating if the software product actually meets the client's needs.
2. Timing: Verification takes place first and includes the checking for documentation, code, and program. It helps in determining whether the product of a given phase of the software lifecycle fulfills the requirements established during the previous phase. Validation, on the other hand, comes after verification and mainly involves the testing of the overall product.
3. Outcome: The outcome of verification is a set of document reviews, walkthroughs, and inspections. If the output is as per the input, then the software is verified. In contrast, the outcome of validation is the working software product, a product that is ready to be used by the end-user, and all the bugs discovered during the validation process have been resolved.