Methods of validating requirements

Validating data in Microsoft Access allows you to check data whilst it is being entered by the database user and will enable you to not save the data if it breaks any validation rules or routines.

It is easy for an end user to make a mistake when they are entering data or even to leave out important details that must be entered, so we need to check this data when it is being entered into the database.

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It may also be referred to as software quality control.

It is normally the responsibility of software testers as part of the software development lifecycle.

In simple terms, software verification is: "Assuming we should build X, does our software actually achieve its goals without any bugs or gaps?

" On the other hand, software validation is: "Was X actually what we should have built? " Validation checks that the product design satisfies or fits the intended use (high-level checking), i.e., the software meets the user requirements.

This is done through dynamic testing and other forms of review.

Verification and validation are not the same thing, although they are often confused.Boehm In other words, software verification is ensuring that the product has been built according to the requirements and design specifications, while software validation ensures that the product actually meets the user's needs, and that the specifications were correct in the first place.Software verification ensures that "you built it right".Software validation ensures that "you built the right thing".Software validation confirms that the product, as provided, will fulfill its intended use.From testing perspective: Both verification and validation are related to the concepts of quality and of software quality assurance.

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