安达信咨询方法与工具资料库CS.doc

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1、13LiteBytes--Client/ServerTechnologiesInsideThisIssue2UnderstandingC/S8MarketplaceTrends9ImpactonourPractice10Futures11SourcesofMoreInfoWrittenbyBillCompton--BSCAtlantaLiteBytesBSC’sTopicalTechnologyWhitePapersVolume1Issue1November1994UnderstandingandApplyingClient/Serv

2、erTechnologiesClient/ServertechnologyismakingasignificantimpactonthepackagedsoftwareandcustomsystemsprojectswithwhichBSCisinvolvedtoday,andthatthistrendwillcontinueforthenext3-5years.ItisimportantthatBSCseniorsandmanagersunderstandtheunderlyingconceptsofthistechnologyan

3、ditsdifferencesfromtraditionalapplicationarchitectures.ExecutiveOverviewThegrowingmaturityofclient/servertechnologyisbeginningtohavesignificantimpactonBSCprojects.Ourclientsareaskinguswhatitmeanstotheirbusiness,andweinturnarerecommendingitforbothpackagedapplicationsoftw

4、areandcustomdevelopedsolutions.Client/Servermodelsandpracticesarethecurrentstate-of-the-artincreatingflexibleandpowerfulsolutions.Asanoutgrowthofthisnewmodel,organizationscanrefocustheirculturebyprovidingusersaccesstoinformationwheneverandwherevertheyneedit,dynamictothe

5、irmarketdemands.Indoingso,theyarenolongerdependingsolelyonthetraditional“centralized”paradigminwhichalloftheprocessinginanapplicationsystemoccursonasinglecomputer.Instead,theprocessingisdistributedtomultiplecomputersystems,eachofwhichisdesignedandoptimizedtoperformagive

6、ncomponentoftheprocessing.Thiscreatesascenarioinwhichtheserverisnotthecomputer,noristheRevision1.0LastUpdateNovember199413LiteBytes--Client/ServerTechnologiesclient.Rather,thecombinationofalltheresourcesonthenetworkisthe“computer”.Inaclient/serversystem,theuserinterface

7、(UI)processingismostoftenperformedbyaclientworkstationorPCatwhichtheuserworks.Themoresophisticatedprocessingofinformation,however,isperformedbyaspecializeddatabaseorapplicationserverconnectedtomultipleclientsbyanetwork.Insomeimplementationsofclient/serverarchitecture,th

8、eapplicationlogic(orbusinessrules)inthesystemmaybeplacedoneithertheclientortheserver,dependingonthebusinesscha