Information Technology Reference
In-Depth Information
[JAC 07]. The use of badges would not be realistic in real conditions as users would
be obliged to carry an electronic badge clearly displayed on their shirt. However, it
was well adapted to an experimental context, especially as the system was sensitive
to orientation: it was therefore possible to know, for example, whether or not a
person was watching a screen.
Figure 10.9.
When the distance increases, the instantiation process chooses
different values for the attributes: the size of the text increases
10.8.1.
The “departing flights” experiment
In this experiment, we displayed a list of information items among which each of
the subjects must look for a precise item that concerns him. Our idea was to
compare the time taken by a user to find the information, depending on whether the
list was static (a paper list or static screen), or personalized and dynamic, i.e.
managed by the PRIAM platform. We also wished to measure the influence of the
number of people found around the display zone on research time. Indeed, we
predicted that the more people there are in front of the screen, the harder the
information search will be for each of them.
The information displayed concerns flights in an airport terminal. It is made up
of triplets (flight, time, boarding gate). A screen displays this information. Initially,
it is static (control experiment), then it becomes dynamic (version using PRIAM).
During each exercise, we provide the user with a flight number as well as a
departure time. The user then has to find the letter of the corresponding boarding
gate on the screen and make a written note of it. On the screen, the flights are
classified in chronological order; see Figure 10.11.
