Describe 3 different data collection techniques that can be used to determine some of the technical difficulties that this group of users face.

A grocery store chain is considering a new check out system to supplement their existing infrastructure. The store serves a large elderly population that regularly shop at the store. This user group has been finding the store checkout system difficult to use with age related difficulties. In order to improve this system and meet the legal accessibility requirements, the store must incorporate some design changes. Using the examples from class as well as the videos provided on blackboard:
Describe 3 different data collection techniques that can be used to determine some of the technical difficulties that this group of users face.
Describe the appropriate data collection technique that would be best suited in this case. Explain the advantages and disadvantages of this technique.
Describe in detail how this data collection technique could be implemented.
How would you overcome the Hawthorne Effect with this method?
Describe the U.S. Laws that protect the legal accessibility requirements that must be met in this development process.
Describe 2 input and 2 output devices that could be incorporated in this new development process.

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