Automotive User Interfaces and Interactive Vehicular Applications
Automotive User Interfaces and Interactive Vehicular Applications
Automotive User Interfaces and Interactive Vehicular Applications
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3.<br />
5.<br />
German Research<br />
Center for Artificial<br />
Intelligence GmbH<br />
1. . 2. .<br />
• Tested criteria: Manifestness,<br />
underst<strong>and</strong>ability, selfdescriptiveness,<br />
task adequacy<br />
• Setup: Icons presented on a 7ʼʼ<br />
display & evaluation booklet<br />
• Task: Assessing the meaning by<br />
ranking four possible descriptions<br />
• Evaluation: Correct meaning: 1st<br />
place � 3 points, 2nd place � 2<br />
points, ...<br />
4.<br />
1.<br />
3.<br />
2.<br />
4.<br />
Verena<br />
Angela<br />
Static irrelevant<br />
information<br />
Verena Johann, Angela Mahr<br />
24 Subjects (12 female & 12 male; age: 20 – 57 years; paid 8 €)<br />
• Tested criteria: Conformity to<br />
expectations, task adequacy<br />
• Setup: Printouts of all 54 icons <strong>and</strong><br />
of the 18 larger feature information<br />
screens (more detailed illustration)<br />
it represents<br />
• Task: Assign each icon to the<br />
matching information screen<br />
• Evaluation: Correctly assigned<br />
icons � 1 point (points x 3)<br />
This work was funded within the project sim TD by the German Federal Ministries<br />
of Economics <strong>and</strong> Technology as well as Education <strong>and</strong> Research, <strong>and</strong> supported by<br />
the Federal Ministry of Transport, Building <strong>and</strong> Urban Development.<br />
?<br />
...<br />
(braking car)<br />
(heavy rain)<br />
+ 14 other feature screens<br />
1. 2. 3.<br />
Intended feature: Warning of weather hazards: Bad sight <strong>and</strong><br />
wet road due to heavy rain<br />
1 3 2<br />
2 points 0 points 1 point<br />
• Tested criteria: Manifestness, task<br />
adequacy, self-descriptiveness<br />
• Setup: Task booklet with feature<br />
description <strong>and</strong> larger feature<br />
screen<br />
• Task: Priority rating for the three<br />
alternative icons<br />
• Evaluation: Best icon � 2 points<br />
(points x 1.5)<br />
6. .<br />
(heavy rain)<br />
Warning icon<br />
„Attention, heavy rain!“<br />
Information icon<br />
„Remaining red light time“<br />
3 days later<br />
this icon<br />
indicates .<br />
• Tested criteria: Learning<br />
supportiveness, manifestness<br />
• Setup: List with all 54 intermixed<br />
icons via email<br />
• Task: Free recall <strong>and</strong> description<br />
of the meaning<br />
• Evaluation: Answers rated with<br />
four-level rating scale (0-3 points)<br />
Feature ‘Attention, heavy rain!’ ‘Remaining red light time’<br />
Icon 1. 2. 3. 1. 2. 3.<br />
Task 1 2.4 2.7 2.8 2.2 2.8 2.2<br />
Task 2 ( x3) 1 1 1 1 0.9 1<br />
Task 3 (x1.5) 0.5 1.9 0.5 1.1 1.4 0.4<br />
Task 4 2.5 2.9 2.9 2.6 2.9 2.8<br />
Total 8.9 11.5 9.5 9.6 10.8 8.7
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