arabera Alex Webster 13 years ago
509
Honelako gehiago
Aids a positive user experience
Minimal user cognitive load (Simple instructions)
Pressure (Queues behind user)
Confusion
Frustration (Machine Errors)
Speech Volume Level needs to be sufficient for those with hearing impairements
Motor/Dexterity
Height Restrictions
Must cater for users with athritis, large hands or tenis elbow
Wheel ChairAccessibility
Colour-Blindess
Impairement
Different levels of capability operting the system need to be taken into consideration (Teens/ elderly/ disabled)
System needs to be checked regularlary in order to eliminate any errors of common user problems
Money tracking system for reporting and monitoring sales figures
Language selection should be easily reached
Screen information must be clear and adequately sized for all users
Preference (Male/Femal)
Range of different languages
Volume Levels
Flashing Orange light above checkout
Alerts member of staff to assist the customer with a problem with the checkout
Green light above checkout
The customers transaction is running smoothly and no help is required
Energy Saving and Enviromentaly Friendly
Non-reflective (Easily readable)
Cash
Chip & Pin
Pictures on screen to match the food selected
Accurately calibrated touch screen system with a quick reaction time
Non-smudging and Non-reflective
Resistant to constent/heavy usage
Screen layout must be in a logical fashion
Touch screen buttons should be sized, coloured and grouped appropriately to avoid user confusion
People may be in a rush to get to lectures
User must be sent backinformation about what action has actually been done, what result has been accomplished (The touch screen could make a clicking sound or be highlighted in a different colour to indicate when it's been clicked.)
Visual
Auditory
Tacticle
Regular feedback lets the user know where they are and have more confidance in the checkout system