Process Group Approach

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1、BusinessComputingTHEPROCESSGROUPAPPROACHTORELIABLEDISTRIBUTEDCOMPUTINGKennethP.BirmanOnemightexpectthereliabilityofadistributedsystemtocorresponddirectlytothereliabilityofitsconstituents,butthisisnotalwaysthecase.Themechanismsusedtostructureadistributedsystemandtoimplem

2、entcooperationbetweencomponentsplayavitalroleindeterminingthereliabilityofthesystem.Manytradinginformation.1Itisnotun-allsystemcanbegreatlyenhanced.contemporarydistributedoperatingcommonforbrokerstocoordinateFigure1illustratesapossiblein-systemshaveplacedemphasisoncom-t

3、radingactivitiesacrossmultipleterfacetoatradingsystem.Thedis-municationperformance,overlookingmarkets.playiscenteredaroundthecurrenttheneedfortoolstointegratecom-Tradingstrategiesrelyonaccuratepositionoftheaccountbeingtraded,ponentsintoareliablewhole.Thepricingandmarket

4、-volatilitydata,showingpurchasesandsalesastheycommunicationprimitivessupporteddynamicallychangingdatabasesgiv-occur.Abrokertypicallyauthorizesgivegenerallyreliablebehavior,butingthefirm'sholdingsinvariouspurchasesorsalesofsharesinaexhibitproblematicsemanticswhenequities

5、,newsandanalysisdata,andstock,specifyinglimitsonthepricetransientfailuresorsystemconfig-elaboratefinancialandeconomicandthenumberofshares.Thesein-urationchangesoccur.Theresultingmodelsbasedonrelationshipsbe-structionsarecommunicatedtothebuildingblocksare,therefore,unsui

6、t-tweenfinancialinstruments.Anydis-tradingfloor,whereagentsoftheableforfacilitatingtheconstructionoftributedsysteminsupportofthisbrokerageorbanktradeasmanysystemswherereliabilityisimportant.applicationmustservemultiplecom-sharesaspossible,remainingwithinThisarticlerevie

7、ws10yearsofmunities:thefirmasawhole,wherethisauthorizedwindow.ThedisplayresearchonISIS,asystemthatpro-reliabilityandsecurityarekeycon-illustratesseveralpoints:videstoolstosupporttheconstruc-siderations;thebrokers,whodependtionofreliabledistributedsoftware.onspeedandthea

8、bilitytocustomizeInformationbackplane.ThebrokerThethesisunderlyingISISisthatthetradingenvironment;andthewouldc