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The Impact of Visible Interface Controls on Usability

By

cxr

11mo ago· 16 min readenNews

Summary

The article discusses the importance of visible interface controls for usability in computer interfaces, referencing the concepts introduced by Douglas Engelbart and popularized by Donald Norman.

Key quotes

· 2 pulled
In the early 1960s, Douglas Engelbart first introduced the notion of 'knowledge in the world' versus 'knowledge in the head' for computer interfaces.
From an interface design standpoint, knowledge in the world simply means that the controls you need are visible, and the identification and operation of these controls can be done through recognition rather than recall.
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In the early 1960s, Douglas Engelbart [1] first introduced the notion of

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