There are some configuration issues a user must consider in order to use an OPeNDAP client application program. There is a short list of software that is required for some of the advanced features of OPeNDAP, and some environment variables that control the execution of the OPeNDAP software. For a piece of software that has been converted to use OPeNDAP, after these conditions are satisfied, the program will run in the same manner it ran before. Aside from network delays, the user should not be able to tell that they are accessing data from the Internet.
Finally, though it may seem unnecessary to mention, in order for an OPeNDAP client application to communicate with an OPeNDAP server, the computer running the OPeNDAP client must be connected to the Internet.