Provide suggestions for reducing input volume.
What will be an ideal response?
Four guidelines for reducing input volume are:
• Input necessary data only. Do not input a data item unless it is needed by the system.
• Do not input data that the user can retrieve from system files or calculate from other data.
• Do not input constant data. If orders are in batches with the same date, then a user should enter the order date only once for the first order in the batch. If orders are entered online, then the user can retrieve the order date automatically using the current system date.
• Use codes whenever possible. Codes are shorter than the data they represent, and coded input can reduce data entry time.
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