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7. Results
7.
Results
After
the
test
was
performed
the
logs
were
analyzed
and
the
most
interesting
data
were
extracted
and
put
in
a
database
using
Microsoft
Access.
From
there,
different
formulas
could
be
introduced
in
order
to
plot
the
most
interesting
data.
The
following
graphs
show
the
results
of
the
usability
tests.
The
first
test
mission
was
to
use
whatever
control
(without
instruction)
to
follow
a
trajectory
that
was
drawn
on
a
paper
sheet
with
the
laser
pointer.
This
test
was
mainly
to
see
how
self‐explanatory
the
interface
was.
Tests
2,
3
and
4
were
to
follow
the
same
trajectory
using
only
one
control
(X‐Y‐control,
orientation
and
last
the
local
coordinate
control,
placed
over
the
video
stream
from
the
camera).
In
these
test
instructions
were
given
on
how
to
use
the
different
controls.
Test
5
was
to
follow
a
longer
trajectory
that
was
outside
the
limits
for
the
X‐Y
control,
so
that
to
complete
it
correctly
it
was
necessary
to
use
the
orientation
control
to
tilt
the
camera.
Test
6
was
to
follow
a
thinner
trajectory,
with
the
purpose
that
the
users
should
use
the
zooming
function
in
the
grid
control
to
increase
the
accuracy
of
the
control.
Test
7
was
a
3D
space
with
hidden
pictures
of
different
kinds
of
bugs,
and
the
point
was
to
use
the
different
controls
in
order
to
point
out
the
two
hidden
butterflies.
Below
is
the
distribution
of
the
usage
in
percentage
of
each
control
for
each
test,
shown
in
figure
23.
Figure
23:
Global
use
of
controls
by
test
in
percentage.
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