Engineering validation test: Difference between revisions

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{{Short description|Testing of prototypes for viability}}

{{unreferenced|date=February 2011}}

{{For-multi|verification and validation in science and engineering most generally|Verification and validation|test validation|Test validity}}

An '''Engineering Verification Test''' ('''EVT''') is performed on first [[engineering]] [[prototype]]s, to ensure that the basic unit performs to [[design]] goals and [[specifications]]. Verification ensures that designs meets requirements and specification while Validation ensures that created entity meets the user needs and objectives. Thus, verification means you are doing it right, while validation means you are doing the right things.

An '''engineering verification test''' ('''EVT''') is performed on first [[engineering]] [[prototype]]s, to ensure that the basic unit performs to [[design]] goals and [[specifications]].<ref>{{Cite journal |date=2002-08-01 |title=Product news |url=https://doi.org/10.1007/BF02715446 |journal=Practical Failure Analysis |language=en |volume=2 |issue=4 |pages=23–25 |doi=10.1007/BF02715446 |s2cid=195269651 |issn=1864-1245|url-access=subscription }}</ref> Verification ensures that designs meets requirements and specification while validation ensures that created entity meets the user needs and objectives.<ref>{{Cite book |last1=Wang |first1=Der-Wai |last2=Hsu |first2=Yen |title=Cross-Cultural Design. Applications in Business, Communication, Health, Well-being, and Inclusiveness |chapter=A Study of Cross-Cultural Communication in the NPD: Applying Piaget's Theory to Multidisciplinary Communication in the Three Validation Stages |date=2022 |editor-last=Rau |editor-first=Pei-Luen Patrick |chapter-url=https://link.springer.com/chapter/10.1007/978-3-031-06050-2_14 |series=Lecture Notes in Computer Science |volume=13313 |language=en |___location=Cham |publisher=Springer International Publishing |pages=188–201 |doi=10.1007/978-3-031-06050-2_14 |isbn=978-3-031-06050-2}}</ref>

==Tests==

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* [[Conformance test]]

* [[Electromagnetic interference]] (EMI) pre-scan

* Thermal and 4 four-corner test

* Basic parametric measurements, specification verification

==Importance==

Identifying design problems, and solving them as early in the design cycle as possible, is thea key to keeping projects on time and within budget. Too often, [[product design]] and performance problems are not detected until late in the [[product development]] cycle —, when the product is ready to be shipped.<ref>{{Cite Thebook old|last1=Dong adage|first1=Jin holdsSong true|url=https://books.google.com/books?id=9_VqCQAAQBAJ&dq=Engineering+validation+design+flaws&pg=PA207 It|title=Formal costsMethods aand [[pennySoftware (UnitedEngineering: States5th coin)|penny]]International toConference makeon aFormal changeEngineering in engineeringMethods, aICFEM [[dime2003, (UnitedSingapore, StatesNovember coin)|dime]]5-7, in2003, productionProceedings and|last2=Woodcock a|first2=Jim [[United|date=2003-11-06 States|publisher=Springer dollar|dollar]]isbn=978-3-540-39893-6 after a product is in the field.|language=en}}</ref>

==Prototyping==

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==Design Verification Test==

Design Verification Test (DVT) is an intensive testing program which is performed to deliver objective, comprehensive testing verifying all product specifications, interface standards, [[original equipment manufacturer|Original Equipment Manufacturer (OEM) ]] requirements, and diagnostic commands. It consists of the following areas of testing:

* Functional testing (including [[Usability testing|usability]])

* Performance testing

* Climatic testing

* Reliability testing

* Environmental testing

* [[Mechanical testing]]

* [[Mean time between failures|Mean Time Between Failure (MTBF)]] prediction

* [[Conformance testing]]

* Electromagnetic compatibility ([[electromagnetic compatibility|Electromagnetic Compatibility (EMC)]]) testing and certification

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== External links ==

* [https://web.archive.org/web/20190612175636/https://www.fda.gov/regulatory-information/search-fda-guidance-documents/design-control-guidance-medical-device-manufacturers, fda.gov] "Design Control Guidance For Medical Device Manufacturers", Section F: "Design Verification".

[[Category:Quality control]]