Define the appropriate format and media for a computer input.
Explain the difference between data capture, data entry, and data input.
Identify and describe several automatic data collection technologies.
Apply human factors to the design of computer inputs.
Design internal controls for computer inputs.
Select proper screen-based controls for input attributes that are to appear on a GUI input screen.
Design a Web-based input interface.
Output and input design represent something of a “chicken or egg” sequencing problem. Which do you do first? In
this edition, we present output design first. Classic system design prefers this approach as something of a system
validation test—design outputs and then make sure the inputs are sufficient to produce the outputs. In practice, this
sequencing of tasks becomes less important because modern systems analysis techniques sufficiently predefine logical
input and output requirements. You and your instructor may safely swap Chapters 15 and 16 if you prefer.
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