Glossary

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Learning by Doing(also: Incidental Learning, Learning-While-Doing)

Learning by doing is a pedagogical and interface design principle in which skills are acquired through the process of performing tasks rather than through separate, explicit instruction. In human-computer interaction, interfaces designed around this principle enable users to…

Linear Interaction(also: Sequential Interaction, Single-path Navigation)

An interface design pattern in which users engage with only one screen or task at a time, following a single sequential path rather than managing multiple overlapping windows, tabs, or concurrent contexts. Linear interaction reduces cognitive load by eliminating the need to…

Logical Control(also: Indirect Control)

An interaction paradigm where the user accesses specific functions supported by an application indirectly, typically by selecting from a presented set of options rather than performing the action directly. Examples include scanning through a menu of commands, using keyboard…

Low Bandwidth Input(also: Limited Input, Reduced Bandwidth Input)

A category of human-computer interaction where the user can only produce a very small number of distinct signals — typically one to four — when communicating with a computer. Low bandwidth input characterizes users with severe motor and speech impairments, such as those with…

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