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1、COVERFEATUREEVOLVINGEMBEDDEDSYSTEMSGaborKarsai,VanderbiltUniversityFabioMassacci,UniversityofTrento,ItalyLeonJ.Osterweil,UniversityofMassachusettsAmherstInaSchieferdecker,FraunhoferFOKUSandTechnicalUniversityBerlin,GermanyIntegratedandembeddedsystemshavebe-increasedexpertisecausesthemto
2、seekmoreoperationalcomeaninvisibleyetcrucialpartofouroptions.dailylives,makingtheircontinuousandAllthesedriverscanleadtospecifictechnicalproblemsforembeddedsystems:trouble-freeevolutionofgreatimportance.•Finelycraftedandoptimizeddesignsmustbemain-tainedandevolvedwithgreatcare—mass-produ
3、cedmbeddedsystemsspanawiderangeofdomains,embeddedsystems,forexample,areoftenoptimizedfromhouseholdapplicationsinappliances,tominimizeresourceconsumption,andevolutionaryentertainmentdevices,andvehiclestocriticalmodificationsmustavoidviolatingthisproperty.applicationsinpatient-monitorings
4、ystems,•Safety-andmission-criticalembeddedsystemsre-Eindustrialautomation,andcommand-and-quiresystemverificationinsomeform,andthiscancontrolsystems.Severalspecificdriverscanshapeanbeabottleneck—thecurrentpracticeofcompletere-embeddedsystem’sevolution.Manyconsumer-orientedverificationisv
5、eryexpensive.systems,forexample,undergorapidchangesbecause•Theevolutionprocessitselfmustbeoptimizedbe-ofmarketpressurestocomeupwithnewproductsorcauseit’stypicallyperformedunderatightdeadline;improvecapabilitiesinexistingones.Anotherdrivermoreover,anychangemustbeminimal,yetmaxi-ishardwar
6、eobsolescence—forexample,aparticularmallyeffective,tomeettheprevioustwochallenges.hardwarecomponentmightneedreplacement,ornew•Becauseembeddedsystemsareoftendeployedinspecial-purposehardwaremightreplacesoftwarefunc-criticalapplications,theymustevolveinvivo—theytions.Existingplatformsmigh
7、talsoneedadditionalcan’tgoofflineforalongtime.functions:ifanembeddedsystemvendoridentifiesanovelbusinessopportunity,itmighthavetoupdateexistingThesechallengescanbestbemetthroughacombinationanddeployedsystemstocapitalizeonthatopportunity.oftechniquesandtechnologies.Wediscussevol
