You are designing a user interface for an information system and you have created two prototypes of
Question:
You are designing a user interface for an information system and you have created two prototypes of the interface.
You have two ways to evaluate the interface: a) User Preference, or b) Productivity. You’ve done a survey of the end users with these two prototypes and discovered that the users don’t prefer one over the other. As a result, the decision about which prototype to use will depend on productivity - the answer is based on the following information.
The time it takes users to perform a task is a good measure of productivity. You invited 30 users, and each user performed the same task using both prototypes. You collected data on the time it took for each participant to finish the task using each prototype.The data is presented below.
User Prototype I (minutes to complete) Prototype II (minutes to complete)
1 76 86
2 70 74
3 73 79
4 68 80
5 78 88
6 79 81
7 80 90
8 81 82
9 70 84
10 62 91
11 68 73
12 70 79
13 75 78
14 77 87
15 73 90
16 74 90
17 75 76
18 79 82
19 80 79
20 74 86
21 72 81
22 79 80
23 80 77
24 75 78
25 78 85
26 68 80
27 90 88
28 80 87
29 81 91
30 84 85
University Physics with Modern Physics
ISBN: 978-0321696861
13th edition
Authors: Hugh D. Young, Roger A. Freedman, A. Lewis Ford