系统工程第ppt课件.ppt

系统工程第ppt课件.ppt

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时间:2020-10-04

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1、Chapter3FormulationofIssues12019SYSTEMSENGINEERING1INTRODUCTIONItisveryimportant,webelieve,thattextsonsystemsengineeringandproblemsolving,ingeneral,paysignificantattentiontoissueformulation,asastepinsystemsengineeringthatneedstooccurineachofthephasesofeffort.Thisissobeca

2、use,inpractice,theresultsofapoorissueformulationeffortmaybesubjecttoverydetailedanalysis,andtheresultsofthisarecarriedoverintoimplementation.Asaresult,weobtainthewrongsystem!Needlesstosay,thisusuallyresultsinawasteofresourcesand(throughengineering)aninferiorsystem,compar

3、edtothatwhichmighthaveresultedfromabetterissueformulation.Issueformulationiscriticalacrossthedefinition,development,anddeploymentphasesofasystemsengineeringlifecycle.Thisisnotastepimplementedonlyaspartofthesystemsdefinitionphase,althoughitisveryimportantinthatphase.7/28/

4、202122019SYSTEMSENGINEERING1INTRODUCTIONAproblem,oranissueasagenerallysynonymousterm,canusuallybeviewedfromseveralperspectives,andthesolutionthatresultswilloftenbeastrongfunctionoftheperspectivesfromwhichaproblemisviewedandformulated.7/28/202132019SYSTEMSENGINEERING1INTR

5、ODUCTIONIssueformulationbeginswithadefinitionoftheproblemorissuetoberesolved.Thisincludesanassessmentofthesituationsurroundingtheproblem.Situationassessmentisimportantinproblemsolvingandissueresolution.Therearemanyaspectsoftheenvironmentsurroundinganissuethatweneedtoknow

6、aboutinordertobeabletogeneratepotentiallyfeasiblealternativecoursesofactionthatcanleadtoissueresolution.Manyofthesefactorsaredynamic,uncertain,andsubjecttochangewiththepassageoftime.Situationassessmentmeansthatweneedtomakeacarefulappraisalofthevariousfactorsthatinfluence

7、aparticularobservedstateorcondition.Generatinggoodalternatives,onesthattrulysatisfytheneedsofourcustomersinaneffective,efficient,equitable,andexplicablemanner,dependsonanindepthsituationassessment.7/28/202142019SYSTEMSENGINEERING2SITUATIONASSESSMENTCompletesituationasses

8、smentconsistsofthreebasicstepsthatareintendedtoanswerthethreequestionshighlightedinFigure3.1.7/28/20215

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