The biggest limitation of security
cards is that nobody reads them.
at checkpoints look at them quickly; nobody beyond the checkpoints
does more than glance at them. It's often all
too easy to misuse cards that are expired,
for that location, or which belong to somebody
problems may make personalization with the holder's photo
impractical, but dates and access privileges should be coded
with images and/or colors.
hurried security personnel will spot incorrect years or locations
the sample badges above since
they use color codes to identify access locations.
They also feature
circle of stars to further identify the year 1999. Security
is not limited to checkpoints, since non-security staff
are likely to notice and report a red badge in a green area.
with OnMerge Images: A
certain musical group uses images of celebrities such as Lady
Di and Elvis
to code stage passes for
constantly-changing locations and
show nights! That's great for security, but you have to
love their souvenir value...