V

Validation

The process of determining that the requirements are the correct requirements and that they form a complete set of requirements this is done a the early stages of the development process. Validation of the end product or system determines if the system meets the users needs.

Vendor

A manufacturer or supplier of an item.

Verification

The process of determining whether or not the products of a given phase of the system/software life cycle fulfill the requirements established during the preceding phase.