The data collected from the usability questionnaire are
visually summarized in the box-plots of Fig. 6. This figure
shows a good distribution of the answers for each question
from the questionnaire.
The General Evaluation was fairly good for the majority
of the subjects, as the boxes for questions Q.2.1, Q.2.2, and
Q2.3 reveal. Nearly the totality of the subjects had a good
reaction concerning the system usage, as the boxes for
questions Q.3.1, Q.3.2, and Q3.3 show. However, the subject
ID2 expressed a better judgment on the error messages
proposed by the tool (see Q.3.3 box). Moreover, on the
perceived simplicity of the tool learning, a good agreement
has been achieved. Indeed, on the questions Q.4.4 the
subjects expressed a worse judgment. However, as the box
for question Q.4.4 shows, the number of steps required to
accomplish a task was considered appropriate. Finally, also
on the Information Grant category a good agreement level
has been achieved. In particular, the subjects expressed a
better judgment on the question Q.5.2 (i.e., each set of
operations produces a predictable result).
To this end, with the help of medical doctors from our
medical school we are currently integrating data sources
concerning a specific disease (Sepsis), for which we are
also writing CD forms and scripts. This will also allow us to
perform more sophisticated interpretations of textual
information contained within medical records, for which
we are also investigating the use of sketch recognition
strategies, due the handwritten text abounding in legacy
clinical records