IBM Informix products conform to a software design model called client/server. The client/server model allows you to place an application or client on one computer and the database server on another computer, but they can also reside on the same computer. Client applications issue requests for services and data from the database server. The database server responds by providing the services and data that the client requested.
You use a network protocol together with a network programming interface to connect and transfer data between the client and the database server. The following sections define these terms in detail.
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