The document discusses several usability principles for designing ATM machines such as visibility, understandability, affordance, mapping, and feedback. It notes that a lack of visibility and clear instructions can cause problems when using ATMs. The paradox of technology is that as devices become more complex with additional features, they also become more difficult to use without strong application of these usability principles.

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"The Psychology of Everyday
Things"! Newsletter!
April 5, 2013
Right things have to be visible to indicate
what parts operate and to interact with
the device. Cool Technology!
Principle of Affordance
This principle needs strong clues to
operate the ATM machine.
Nothing complex but easy and straight
forward text and audio instructions.
Affordance principle provides strong
clues to operations such as the correct
way of inserting the bank card.
Demonstrations are done.
The Paradox of Technology, the ATM
machine
Dear Study Group Members,
Let’s talk about the principles of
Visibility, Understandability, Usability,
Affordance, Mapping and Feedback on
the ATM machine.
Design for Understandability
Lack of Visibility on the machine causes Sometimes we need a deeper
so many problems. Poor instructions understanding of procedures.
on how to operate the ATM. What do I
have to do to deposit a check on the
ATM?

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Technology offers a variety of possibilities.Principle of Mapping
Its potential makes life easier with There is a mapping relationship
Increased benefits. The more the device involved in electronically controls.
Gets complex the more difficult it It allows for adjustments, learning
Becomes to use. You can do a multipleand remembering.
Functions on the modern ATM.Principle of Feedback
That is the Paradox of Technology.Sending information back to the user.
Check it out: get cash, balance andMany more features and less feedback.
Statements, deposit cash/checks, buyToo much information to take in.
Stamps, donations, choice of language,Designer cannot satisfy everyone.
Transfer money from one account to Technology is awesome!
Another, the list is endless.References:
All images from;
https://www.google.com/search?
Norman, D. A. (1988) The Psychology of
EverydayThings. United States of America.
By Sweetmore Library of Congress.