List five standards that can aid in evaluating user interfaces.
What will be an ideal response?
The five useful standards in evaluating the interfaces are:
A. The necessary training period for users should be acceptably short.
B. Users early in their training should be able to enter commands without thinking about them, or referring to a help menu or manual.
C. The interface should be “seamless” so that errors are few, and those that do occur are not occurring because of poor design.
D. Time necessary for users and the system to bounce back from errors should be short.
E. Infrequent users should be able to relearn the system quickly.
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A round button that enables you to make one selection from among several choices is called a(n):
A) split button. B) navigation button. C) option button. D) task button.
Use a one-dimensional array to solve the following problem. A company pays its salespeople on a commission basis. The salespeople receive $200 per week plus 9% of their gross sales for that week. For example, a salesperson who grosses $5000 in sales in a week receives $200 plus 9% of $5000, or a total of $650. Write a program (using an array of counters) that determines how many of the salespeople earned salaries in each of the following ranges (assume that each salesperson’s salary is truncated to an integer amount):
