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Usability FailGustavo A ValeroMaster in Web EngineeringUniversity of Oviedo
AutobarCoffee
Machine
• Instruction Screen
• Payment Area
• Drinks area• Sugar selector• Drink selector• Drink delivery
AutobarCoffee
Machine
• Instruction Screen
• Payment Area
• Drinks area• Sugar selector• Drink selector• Drink delivery
Select drink
Insert money
[Drink Preparation]
Grab the drink
Take the change
Machine Process
Select drink
Insert money
[Drink Preparation]
Grab the drink
Take the change
?Machine Process
SolutionsO Insert moneyO Select sugarO Select drinkO Take your
changeO Grab your
drinkand Enjoy!
• Instructions sticker
• New machine design• Relocate change
slot• Bigger screen
Questions?
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