AffordanceA possible action enabled by a particular object or environment
Definitions:
The qualities or properties of an object that define its possible uses or make clear how it can or should be used
CognitiveRelating to how we understand and process information
Definitions:
Connected with mental processes of understanding
PerceptionThe way we understand or interpret something
Definitions:
The way of regarding, understanding, or interpreting something; a mental impression
ConstraintA limitation or restriction
Definitions:
A limitation or restriction
UsabilityThe ease with which something can be used
Definitions:
The degree to which something, especially a device or system, is able to be used easily