192
To make the experiment fruitful, we gave subjects instructions as follows: Each
participant is requested to play the role to maximize his/her own benefits as the
representative of the stakeholder. Concretely, we asked them to perform the discussion on the topics of production and use of biofuels from the role of the stakeholder
with the following items in their mind:
• Negative opinions: problems to be solved and anything needs improvement, etc.
• Positive opinions: what you expect, what you utilize, etc.
We also asked them to summarize the discussion on the following items in a
summary sheet:
• In what respects your opinion conflicts with others’
• Other stakeholders with which you can collaborate on what respects
In the experiment 2 of group A with maps, each subject built a map after a brief
instruction on how to use the system. The focal point from which exploration is
done was set to “production of biofuels,” and each subject built a map selecting a
couple of keywords (3–5) from about 120 keywords prepared in advance. To minimize the deviation of the generated maps, we restrict the map generation command
to “search path” which generates a map automatically according to the selected
keywords. To make the maps compact and easy to interpret, we asked them to delete
paths which they find not interesting and to extend such paths that they want to
explore further. By doing this, they got maps including only interesting and meaningful paths from the perspective of the stakeholder role they play.
The subjects performed the discuss using the integrated map presented on the
touch table with appropriate enhancement of interested items to contrast
differences and commonalities among maps they made based on their own
perspectives (Fig. 12.6). They thus exchange opinions with such a help provided
by the system.
Table 12.1 Processes of experiments with time table
Time used in
minute
Group A
Group B
10
Instruction of the experiment
15
Experiment 1
Preparation (1) [making a rough plan]
20
Group discussion (1) [without the system]
35
15
Experiment 2
Preparation (2) [each builds a
map]
Preparation (2) [rough
planning]
20
Group discussion (2)
[without a map]
20
Group discussion (2)
[discussion with maps]
Participate in the discussion
by group B
20
Answering inquiries with wrap-up discussion
K. Kozaki et al.
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