Usability Evaluation of a Map-Based Multi-Publishing Service - Advances in Cartography and GIScience - page 251

A relevant finding from the 'User interface' group is that the number of
actions the user needs to perform should be minimized, meaning that when
activating a function, for example an animation, it should be performed
using a minimum number of steps. All actions should also give feedback
and the actions as well as the user interface should be consistent. The
mobile map and the web map applications still lacked a search function at
this stage of development. A possibility to search locations by typing their
name into a search field or choosing them from a list would be essential
for making the map service more usable.
To achieve results from the post-test questionnaires for the Web Map and
mobile map application ( Fig. 6 ) , we calculated an overall value of the
system usability by using the SUS formula (Brooke 1996). The satisfaction
with both the Web Map and the mobile application was relatively high.
The users thought both of them were fun to use and that utilising them for
hiking would be easy. As the evaluation was first conducted with the Web
Map, followed by an evaluation of the mobile application two weeks later
with the same participants, it could be observed that the participants had
adopted the idea of the multi-publishing service quickly and that they
expected the both channels to look alike and work in the same manner.
Figure 6: The system usability scores for each participant show user satisfaction with the
Web Map and mobile map application