The ubiquitous computing evaluation focused on the
following usability concepts: attention, trust, conceptual
model, interaction, invisibility and impact. All responses
were given on a Likert scale from 1–5.
Table 1 presents findings from the usability evaluation
survey by study group. One of the Paper Group participants
was lost to follow up soon after the study began and did not
complete the survey. While the Chi-squared and ANOVA
analysis tests did not reach statistical significance and
cannot be overly generalized, the study’s descriptive data
provides useful information.
Attention One-Prompt Group participants were the most
active accessing their mobile phones on average 6.0 times
per day. Paper Group participants used their paper tracking
forms 5.5 times a day, while Three-Prompt users were the
least active at 3.0 times a day. Overall participants used
either mobile phone or paper tracking on average 4.8 times
a day.
Trust Results were mixed for awareness of security
measures between the groups, but mobile phone users felt
their information was more private (60 and 80 vs. 25%).
More mobile phone users also felt security and privacy was
important.
Conceptual Model Paper Group members felt their forms
behaved (4.8) and functioned (4.5) as expected.