#!F-adobe-helvetica-medium-r-normal--18* #!N #!CNavyBlue #!N #!Rc11 System Structure #!N #!EC #!N #!N Data Explorer is designed as a client-server model. The Data Explorer client-server architecture incorporates system components such as TCP/IP, sockets, X Window System, and Motif. #!N #!N In this client-server model, the user interface is the client. The executive, modules, and data management components, often referred to collectively as the executive, make up the server portion. The user interface client can be on a different platform from the server (executive), and the executive can run on multiple platforms simultaneously (distributed processing). Data Explorer allows you to switch among servers running on different hardware platforms. #!N #!N The Data Explorer system can be thought of as consisting of four "layers," each with its own defined interface. These layers are described in the order in which you are likely to encounter them: #!N #!I0 #!N #!F-adobe-times-medium-r-normal--18* #!N #!N #!I30 #!N o Graphical user interface #!N #!I30 #!N o Executive #!N #!I30 #!N o Modules #!N #!I30 #!N o Data management. #!N #!I0 #!N #!EF #!N #!N #!N #!N #!F-adobe-times-medium-i-normal--18* Next Topic #!EF #!N #!N #!Lall182,dxall183 h Graphical User Interface #!EL #!N #!F-adobe-times-medium-i-normal--18* #!N
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