Question

Human Computer Interface

1. Consider additional requirements and technology to further complicate your analysis of an Automated Teller Machine (ATM) design:
   1. Use eye-tracker data to further analyze the product
   2. Consider accessibility (universal usability) issues such as lighting, physical placement of ATM, etc.
   3. Consider user profile issues, e.g. is this the first time a user is using an ATM?
   4. Requirement to perform beta and/or market tests?
   5. Are there other stress factors such as a looming time deadline or a personal safety issue?

Answer 1

Solution

a)

"Eyetracker" data can show us where users look first when they use the interface which would allow us to better place the key features they are looking for in the places they look first

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b)

The Automated Teller Machine(ATM) should be placed on ground level (not raised or lowered) so that users do not have to crane their posture up or down to interact with it. Also it should be in a well lit environment so that users can correctly see the interface they are using. Furthermore the ATM should be placed in its own space, away from other things people want to use so that users are not crammed into a space and so that, if a queue of users forms to use it, they do not block the paths of others.

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c)

Perhaps to help new users, if more than a couple of user errors occur, the interface should begin to display non-intrusive help messages to guide them towards their goal.

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d)

Positioning and lighting of the environment of the ATM could be tested in control groups to find the most preferred setup of the ATM by users

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e)

One stress factor users might encounter is if they are using the ATM while a large queue has formed behind them or if they have waited a long time to use the ATM. The frustration of waiting a long time and the stress of wanting to use the ATM quickly so others can use the machine will cause the users to make more mistakes and have less pleasant experiences.

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all the best