英语翻译ConceptualRelationship•SOAisaradicaldeparturefromclient-serverarchitecture.CurrentSOAsstillemploysomeofthetechnologiesoriginallyusedtobuildclient-serverapplications.Thoughmoresophisticated,SOAsintroducecomp

　　英语翻译

　　ConceptualRelationship

　　•SOAisaradicaldeparturefromclient-serverarchitecture.CurrentSOAsstillemploysomeofthetechnologiesoriginallyusedtobuildclient-serverapplications.Thoughmoresophisticated,SOAsintroducecomplexitythatsharplycontraststhesimplicityofatwo-tierclient-serverarchitecture.

　　•DistributedInternetarchitecturehasmuchincommonwithSOA,includingasignificantamountofitstechnology.However,SOAhasdistinctcharacteristicsrelatingtobothtechnologyanditsunderlyingdesignprinciples

　　Multi-TierSystemArchitecture

　　•RPC-based

　　–Clientandmiddlewareserveristightlycoupled

　　•RemoteObjectbased

　　–Remoteobjectscommunicatesthroughstandardinterfacelanguages

　　–Objectmodels:OMGCORBA,SUNJavaRMI,MSDCOM

　　•Webbased

　　–Browser+“Dynamiccontentgeneration”

　　–Enablingtechniques:CGI,JavaServlet/JSP,MSASP

　　DistributedObjectComputing

　　•Coupledwithapowerfulcommunicationsinfrastructure,distributedobjectsdividemonolithicclient/serverapplicationsintoself-managingcomponents,orobjects,thatcaninteroperateacrossdisparatenetworksandoperatingsystems.

　　–SUNJ2EE

　　•JavaTM2Platform,EnterpriseEdition

　　–MSDCOM

　　•DistributedComponentObjectModel

　　–OMGCORBA