Metrics Glossary

Software Metrics Glossary V


validation confirmation by examination and provision of objective evidence (4.7.2) that the particular requirements for a specific intended usage are fulfilled NOTE1 -The term validated is used to designate the corresponding status. NOTE 2 -The use conditions may be real or simulated. ( Reference : TC176:ISO 9000:2000)
validation Validation involves evaluation of the customer requirements against customer needs and expectations, and evaluation of the delivered system to meet the customer’s operational need in the most representative environment achievable. [Wells-Lockheed] ( Reference : SEI:SE-CMM)
validation (test) A test to determine whether an implemented system fulfils its specified requirements ( Reference : ISO/IEC JTC1/SC1:2382-20)
validity The extent to which a metric measures what it purports to measure, and the usefulness of the metric for a given purpose (e.g., prediction). ( Reference : SC7:15939)
Value (of a quantity) magnitude of a particular quantity, generally expressed as a unit of measurement multiplied by a number (From [International Vocabulary of Basic and General Terms in Metrology, 1993])
Value Adjustment Factor This represents the quality and technical features of the application delivered to the user. Whereas ‘functions’ on the hierarchy represent ‘what’ the user can do with the software the ‘features’ represent ‘how’ these functions are implemented and ‘how well’ they operate. The Value Adjustment Factor (VAF) is calculated from the General Systems Characteristics. ( Reference : Total Metrics)
Value adjustment factor (VAF) The factor that indicates the general functionality provided to the user of the application. The VAF is calculated based on an assessment of the 14 general system characteristics (GSCs) for an application. ( Reference : IFPUG CPM 4.1)
variation Difference between the planned value of the technical parameter and the achievement-to-date value derived from analysis, test, or demonstration. [MIL-STD 499B] ( Reference : SEI:SE-CMM)
verification confirmation by examination and provision of objective evidence (4.7.2) that specified requirements (4.1.8) have been fulfilled NOTE - The term verified is used to designate the corresponding status. ( Reference : TC176:ISO 9000:2000)
Verification Confirmation by examination and provision of objective evidence that specified requirements have been fulfilled. [TBD: reference ?] ( Reference : SC7/WG7:15288)
verification The process of determining whether or not the products of a given phase of development fulfill the requirements established during the previous phase. [IEEE P1220] ( Reference : SEI:SE-CMM)
verification (test) A test of a system to prove that it meets all its specified requirements at a particular stage of its development. ( Reference : ISO/IEC JTC1/SC1:2382-20)
verify To prove to be true by demonstration, evidence, or testimony. ( Reference : SEI:SA-CMM)
Version An identified instance of an item. ( Reference : ISO/IEC JTC1/SC7:12207)
Version An identified instance of an SCI within a schema for the purpose of revealing change history. The SCI with a specific identification released to software engineers for drafting, review or modification, or to the acquirer for use. ( Reference : SC7/WG8:15846)
Version An identified instance of a Configuration Item within a product breakdown structure or configuration structure for the purpose of tracking and auditing change history. Also used for software Configuration Items to define a specific identification released in development for drafting, review or modification, test or production. ITIL Sept 2002
Version Identifier A version number; version date; or version date and time stamp. ITIL Sept 2002
Verso page on the opposite side (i.e. right or left) as the front cover ( Reference : ISO/IEC JTC1/SC7:15910)
Virtual Reference References made to concepts, other than specific meta-entities in a meta-model, are known as virtual references and are represented by boxes with diagonal striping. ( Reference : ISO/IEC JTC1/SC7; CDIF:15474-1)
VOIP Voice Over Internet Protocol (Reference ITIL® Sept 2002)