Consider the development of an external computer system to evaluate how well a human subject is learning the use of a computer. The user is to interact with the I/O devices of monitor, keyboard, trackball, and mouse. The “user object” has an attribute called “experience level,” which has the possible values “novice computer user,” “frequent computer user,” and “experienced computer user.” List other possible attributes that might be appropriate for describing the user. (For simplicity, assume that there is a single software application running and that the user is not familiar with it.) Refer to the model of a user interface that was given in Figure 3.6.
Write a control flow diagram for the MacTAGS example given in Figure 4.8.
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