 |
Handicapped Users - Do the
users of this panel have any special needs requirements
like color blindness or limited vision requiring better
audio feedback? Did you know that the RED
and GREEN color spectrums
are the most common colors missing for people with color
blindness? Do the button faces need to be oversized or
do you need to confirm button presses with "Are you
sure?" screens? |
 |
Environmental - Is your
panel to be used in a darkened room or in a glass walled
room exposure to direct sunlight? A touch panel located
in a high ambient light condition will have different
contrast issues from a similar touch panel that is located
in low light conditions. If so, you may need to include
panel contrast controls. |
 |
Panel Size - Are you using
the correct panel for the job? A larger panel will always
give you more room to spread out your design but is it
appropriate for the space where it will be located? |
 |
Panel Location - Is the
panel located in a strange place that will change the
viewing angle? Panels that are located either above or
below the normal line of sight may need special contrast
or viewing angle controls to allow users to adjust for
their height. |
 |
Client Requests - Often
the Client has an idea of what they want you to deliver.
You should educate them in good panel design and arrive
at a compromise between their expectations and a good
panel design. |
 |
Available Resources - Does
the Client have any images, color palettes or corporate
media that absolutely need incorporated into the touch
panel? It is always better to ask upfront to save time
in a redesigning down the road! |
 |
Application or Usage - Will
this panel be used by operators that can tolerate more
detail to allow for more granular control or is it an
executive panel that must be slick and easy to use? |
 |
Language - Do the users of this touch panel speak more than one language? You may want to use icons instead of words (on buttons and labels) but be sure to have a multilingual help page that defines what each button means. |