Exam 16: Input Design and Prototyping

A text box is most appropriately used when the input data values are unlimited in scope and the analyst is unable to provide the users with a meaningful list of values from which they can select.

Electromagnetic ADC technology is based on the use of television frequency to identify physical objects.

Describe three characteristics of a text box.

With self-checking digits the check digit is calculated by applying a ____________ to the actual key.

Existence checks are used to _________________________________.

To make sure that alphabetic data could not be allowed in a numeric field you would use _______________ checks..

Radio buttons are most appropriate when a user may be expected to input data that has a limited predefined set of mutually exclusive values.

__________________ are used to capture data at the point of sale and provide timesaving ways to enter data, perform transactional calculations, and produce some output. Most can scan and read bar codes to eliminate keying errors.

Online processing is:

____________________ techniques are designed with the goal of eliminating human intervention associated with data input methods.

Generally, the size of the text box should be large enough for all characters of the fixed-length input to be entered and viewed by the user. When the length of the data to be input is variable and could become quite long, the text box's scrolling and word-wrapping features should be applied.

Internal input controls ensure that the data input to the computer is accurate and that the system is protected against accidental and intentional errors and abuse, including fraud.

A suggestion to help with the use of source documents to capture data is to include instructions for completing the form, preferably at the beginning of the form.

Format checks compare data entered against the known formatting requirements for that data.

Some system enhancements can be accomplished quickly b y writing new simple programs or making very simple changes to existing programs.

Automatic teller machines (ATMs) are remote batch processing devices.

In on-line processing, the captured data is processed immediately.

A list box:

Batch processing is barely used anymore.

Describe the main characteristics of a list box.