In prompt the system displays one inquiry at a time, asking the user for a response. For example, the following dialogue represents a prompt approach to data entry.
Most systems edit the data entered by the user. For example, if the password exceeds a maximum number of digits or if the password is illegal, system responds with a message like UNAUTHORIZED ENTRY or ILLEGAL NUMBER. The user has three chances to enter the correct code, after which the system "locks up." In banks' automated teller machines (ATMs), if customer entered his/her code wrong three times, the system retains the card and displays a message on the screen that the user should check with an officer during banking hours.
The prompt method also allows the user to key questions that determine mine the next response of the system. In our example INPUT DATA NOW? Y/N, if the response is Y, the system might display a record format for entering data. Otherwise, it might automatically go back to the menu for different set of options. This method along with the menu and template designed to improve the efficiency and accuracy of online data entry.
In each of the alternative approaches to data entry, the user's options are predefined. An inexperienced user is guided through complex functions by a formatted procedure. The main limitation with many of the avail menus or prompts is that they require only one item to be entered at a time rather than a string of data items simultaneously.
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