IPO Diagrams

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Input Process Output (IPO) diagrams are used to visually display the inputs, processes and expected outputs of a system through a tabular format. An input is data that is to be entered into the system either from a users or obtained from another location on the system. A process is a series of steps / operations that will be applied the input data in order to convert it into the desired output. The output is data that has been turned into information after processing, which is basically the whole purpose of the software.