Design and Evaluation of the Interface of Recreational Intelligent Escort Products

Table 3

Establishment of first-level guidelines and second-level subcriteria.

Level 1 guidelines	Secondary subcriteria		Number
Interaction method	Multichannel interaction	Multisensory interaction
	Naturalness	Easy and convenient to wake up the terminal
	Validity	Output messages are accepted and executed correctly
	Immediacy	Feedback can be quickly made clear to older adults
Interface quality	Simplicity	The picture is simple, no extra decoration
	Reasonable color scheme	Color affinity, but not too beautiful
	Reasonable layout	Proper arrangement of user interface elements
	Visual design	Reasonable overall aesthetics and neatness
Cognitive support	Ease of learning	Simple operation steps, easy to learn
	Consistency	Element semantics in line with user perception
	Easy to understand	Icon function semantics are easy to understand
User experience	Efficiency	Complete tasks simply and efficiently
	Fault tolerance	Low error rate
	Caring and friendly	Humanistic care for the elderly