Glossary

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Material Experience(also: Material Aesthetics, Material Interaction)

The multidimensional way people perceive, interpret, and emotionally respond to the physical materials of objects they interact with. The materials experience framework categorizes these experiences into four levels: sensorial (immediate physical sensations from touching,…

Mental Fatigue(also: Cognitive Fatigue, Mental Exhaustion)

A state of reduced cognitive capacity resulting from prolonged mental effort, characterized by difficulty concentrating, slower processing, increased errors, and reduced ability to handle unexpected situations. Mental fatigue particularly affects people with dementia, traumatic…

Mental Workload(also: Cognitive Load, Cognitive Workload)

The amount of cognitive effort and mental resources required to complete a task. In accessibility contexts, mental workload is an important measure of how demanding an interface is to use — an interface may be technically functional but impose excessive cognitive burden on users…

Menu Selection(also: Menu Navigation, Menu Selection Task)

A fundamental computer interaction task in which a user chooses an option from a set of items presented in a menu structure, typically involving locating the target item, moving the cursor to it, and clicking to select. Menu selection performance is commonly measured by task…

Midas Touch Effect(also: Midas Touch Problem)

An interaction design challenge in touch-based and gesture-based interfaces where the system cannot distinguish between intentional activation commands and incidental or exploratory touches. Named after the mythological King Midas whose touch turned everything to gold, the…

Multi-Layered Interface(also: ML Interface, Layered Interface, Training Wheels Interface)

An interface design approach where novice users start with a reduced-functionality layer containing only basic features, then progress to more complex layers as they become comfortable. This technique reduces cognitive load during initial learning by limiting the number of…

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