A JDBC driver, jConnect purchased from the Sybase company, has been installed in the Server host computer Smadata. The basic configuration for the SMA On-Line Archive System is illustrated in Fig. 1. JDBC provides standard Java API codes that allows us to develop a specific Java Applet GUI (Graphical User Interface) to communicate with SMADB via SQL Server. The data computer also hosts an HTTP Server. This Server provides a port for outside clients to download Java Applets and therefore to establish a connection with the database Server. As soon as the Client/Server connection is established, the data transaction can proceed via the network. In principle, a client can be anywhere in the world. As long as the client is allowed to access the computer network (such as the internet) and the client computer is equipped with a Java supported Web browser, the client should be able to access the SMA On-Line Database.
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