Exam 16: Input Design and Prototyping

Data type checks ensure that the correct type of data is input. For example, alphabetic data should not be allowed in a numeric field.

A simple example of remote batch processing uses a PC-based front-end application to capture and store the data. The data can later be transmitted across a network for batch processing.

A caption for a text box should be located to the right of the actual text box or right-aligned immediately above the text box.

Which of the following input methods could best be used by the wait staff in a busy restaurant to enter customer orders?

MICR:

Smart cards:

Optical mark recognition requires the user or customer to carefully handwrite input data on a business form.

In on-line processing, the entered data is collected into files. Each file is stored on-line, and processed as a unit to update all of the entered transactions at the same time.

Radio buttons should present the alternatives vertically aligned and left-justified to aid the user in browsing.

Self-checking digits determine whether the input data for each field falls in the legitimate set or range of values defined for that field.

Keyboard data entry remains the most common form of input.

A(n) _________________________________ is a pointing device used in conjunction with graphical user interfaces. It has made it easy to navigate on-line forms and click on commands and input options.

When possible, use input designs based on known metaphors. Not all inputs lend themselves to metaphors (such as a checkbook), but some are greatly enhanced by the imitation.

Source documents are _______________________________.

MICR is most widely used in the banking industry.

Strictly speaking, buttons are not input controls. They do not contribute to the selection or input of actual data. Nonetheless, input form design is incomplete without them.

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

Describe the differences between batch versus on-line processing.

A text box should be accompanied by a descriptive, meaningful caption.

Data capture is ______________________________.