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1、NOTMEASUREMENTSENSITIVENationalAeronauticsandNASA-GB-8719.13SpaceAdministrationMarch31,2004NASASoftwareSafetyGuidebookNASATECHNICALSTANDARDPREFACEEffectiveDate:31March2004Thisdocumenthasbeenissuedtomakeavailabletosoftwaresafetypractitionersaguidebookforassessingsoftwar
2、esystemsforsoftware’scontributiontosafetyandtechniquesforanalyzingandapplyingappropriatesafetytechniquesandmethodstosoftware.Softwaredevelopersandsoftwaresafetyengineersaretheprimaryfocus;however,softwareassurance(SA)engineers,projectmanagers,systemengineers,andsystems
3、afetyengineerswillalsofindthisguidebookuseful.Thedocument:Providesanoverviewofgeneralsoftwaresafetyandgoodsoftwareengineeringpracticeswhichcontributetosoftwaresystemsafety.Providesthemeanstoscopeandtailorthesoftwaresafetyandsoftwareengineeringactivitiestoobtainthemostc
4、osteffective,bestquality,andsafestproducts.Providesanalyses,methodsandguidancewhichcanbeappliedduringeachphaseofthesoftwarelifecycle.MultiplechecklistsandexamplesareprovidedaswellasspecificinstructionsforapplyingFMEA/CILandFTAtosoftware.Includesdevelopmentapproaches,sa
5、fetyanalyses,andtestingmethodologiesthatleadtoimprovedsafetyinthesoftwareproduct.ProcuringNASAEnterpriseProgramsorCentersshallreviewthisdocumentforapplicabilitytoNASAcontractsaswellasforapplicabilitytoitsinternalactivities.Questionsconcerningtheapplicationofthispublica
6、tiontospecificprocurementsorrequestsshouldbereferredtotheNASAEnterpriseProgramorCenter.ThisguidebookcancelsNASA-GB-1740.13-96,NASAGuidebookforSafetyCriticalSoftwareAnalysisandDevelopment./s/BryanO’ConnorAssociateAdministratorforSafetyandMissionAssuranceNASA-GB-8719.131
7、ForewordThisguidebookwascreatedtoprovidespecificinformationandguidanceontheprocessofcreatingandassuringsafesoftware.Inourmodernworld,softwarecontrolsmuchofthehardware(equipment,electronics,andinstruments)aroundus.Sometimeshardwarefailurecanleadtoalossofhumanlife.Whenso
8、ftwarecontrols,operates,orinteractswithsuchhardware,softwaresafetybecomesavitalconcernTheaudienceforthisguidebookisdi
