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ISVV stands for Independent Software Verification and Validation. ISVV is targeted at safety-critical software systems and aims to increase the quality of software products, thereby reducing risks and costs through the operational life of the software. ISVV provides assurance that software performs to the specified level of confidence and within its designed parameters and defined requirements. ISVV activities are performed by independent engineering teams, not involved in the software development process, to assess the processes and the resulting products. The ISVV team independency is performed at three different levels: financial, managerial and technical. ISVV goes far beyond “traditional” verification and validation techniques, applied by development teams. While the latter aim to ensure that the software performs well against the nominal requirements, ISVV is focused on non-functional requirements such as robustness and reliability, and on conditions that can lead the software to fail. ISVV results and findings are fed back to the development teams for correction and improvement. ==ISVV History== ISVV derives from the application of IV&V (Independent Verification and Validation) to the software. Early ISVV application (as known today) dates back to the early 1970s when the U.S. Army sponsored the first significant program related to IV&V for the Safeguard Anti-Ballistic Missile System. By the end of the 1970s IV&V was rapidly becoming popular. The constant increase in complexity, size and importance of the software lead to an increasing demand on IV&V applied to software (ISVV). Meanwhile IV&V (and ISVV for software systems) gets consolidated and is now widely used by organisations such as the DoD, FAA, NASA〔(NASA IV&V Facility )〕 and ESA.〔(ESA Web site )〕 IV&V is mentioned in (), (12207 ) and formalised in (1012 ). Initially in 2004-2005, a European consortium led by the European Space Agency, and composed by DNV(N),〔(DNV Web site )〕 Critical Software SA(P),〔(Critical Software SA Web site )〕 Terma(DK)〔(Terma Web site )〕 and CODA Scisys(UK)〔(Scisys Web site )〕 created the first version of a guide devoted to ISVV, called "ESA Guide for Independent Verification and Validation" with support from other organizations, e.g. SoftWcare SL (E) (〔(SoftWcare SL Web site )〕), etc. In 2008 the European Space Agency released a second version, being SoftWcare SL was the supporting editor having received inputs from many different European Space ISVV stakeholders. This guide covers the methodologies applicable to all the software engineering phases in what concerns ISVV. 抄文引用元・出典: フリー百科事典『 ウィキペディア（Wikipedia）』 ■ウィキペディアで「Independent software verification and validation」の詳細全文を読む スポンサード リンク
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