Efficiency measures speed with accuracy in which users
can complete the tasks while using the product [9]. Timing
data has been collected to measure time taken to perform
each task (time on task). The tasks have been set to
determine the difference of time taken by each user to
complete the task for several time usages, depending on the
task, to see whether there is decrement in time (increase of
efficiency). Besides, qualitative data has also been obtained
from observations on their interaction with elements such as
text, navigational icon, button, sound instruction etc, and
any errors or problems that interrupt and slow them down
while using the courseware.