Concept_Maps by ves88494

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									                   Concept_Maps


Business                          Business
Logic                             Logic


Glue-Logic                        “Middleware”
Stubs,
Generic Services


Transport                         Transport
                            The RPC Model
                                         Location Service Component




                                                                      Servicing
                                                                      component
                  interrogate
                                                  publish


Requesting component


                                                                      server
                                engage
           Similarities and Differences
• Similarities
   – COM, CORBA, RMI have location service via a
     Registry
   – Activation Sequence the same (install, publish,…)
   – Can query by service name, interface description
• Differences
   – Java is own IDL
   – RMI locks Registry to Service location (server-side
     model)

								
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