Verifying validating software requirements design specifications dating cigar boxes
Verification, from CMMI's point of view, is evidently of the artifact kind.
In other words, software verification ensures that the output of each phase of the software development process effectively carry out what its corresponding input artifact specifies (requirement - software product), while software validation ensures that the software product meets the needs of all the stakeholders (therefore, the requirement specification was correctly and accurately expressed in the first place).
In software project management, software testing, and software engineering, verification and validation (V&V) is the process of checking that a software system meets specifications and that it fulfills its intended purpose.
It may also be referred to as software quality control.
Test cases may be prepared for software verification and software validation to determine if the product was built according to the requirements of the user.
Other methods, such as reviews, may be used early in the life cycle to provide for software validation.
Software verification ensures that "you built it right" and confirms that the product, as provided, fulfills the plans of the developers.
Software validation ensures that "you built the right thing" and confirms that the product, as provided, fulfills the intended use and goals of the stakeholders.
Examples of artifact verification: Validation during the software development process can be seen as a form of User Requirements Specification validation; and, that at the end of the development process is equivalent to Internal and/or External Software validation.Successful final external validation occurs when all the stakeholders accept the software product and express that it satisfies their needs.Such final external validation requires the use of an acceptance test which is a dynamic test.Requirements should be validated before the software product as whole is ready (the waterfall development process requires them to be perfectly defined before design starts; but, iterative development processes do not require this to be so and allow their continual improvement).Examples of artifact validation: It would imply to verify if the specifications are met by running the software but this is not possible (e. Only by reviewing its associated artifacts, someone can conclude if the specifications are met.