Information Technology Reference
In-Depth Information
Fig. 5.12
Comparing the multi-user view and the single-user view (The error lines indicate the
95 % confidence intervals of the means. ** = statistically significant)
12
12
12
12
12
11
11
11
11
11
10
10
10
10
10
9
9
9
9
9
8
8
8
8
8
7
7
7
7
7
6
6
6
6
6
5
5
5
5
5
4
4
4
4
8,0
8,0
8,0
8,0
3
3
3
3
4,4
4,4
4,4
4,4
2
2
2
2
2,5
2,5
2,5
2,5
1
1
1
1
1,1
1,1
1,1
1,1
0
0
0
0
Findinganarbitrary
question
Findinganarbitrary
question
Findinganarbitrary
question
Findingaspecificcomment
Findingaspecificcomment
Findingaspecificcomment
Multiuserview(N=6)
Multiuserview(N=6)
Singleuserview(N=6)
Singleuserview(N=6)
Fig. 5.13
Task completion times. (The error lines indicate the 95 % confidence intervals of the
means.)
assumption that the multi-user view enables a fast overview of shared annotations
of other users.
Participants found that the different icon sizes, with which annotations of other
users are visualized and which reflect the size of the annotation, are helpful, but two
participants had difficulties recognizing some of the smallest icons and suggested
to visualize them in a more highlighted manner. All participants particularly valued
