141 Visibility

Things in clear view are more likely to be used than things not in clear view.

• Visible controls and information act as cues for what is and is not possible. Things that are not seen are less likely to be considered, and this is especially true when people are under stress.

• Accordingly, systems should clearly indicate their status, the key actions that can be performed, and the consequences of those actions once performed.

• Visibility increases probability of use when the number of options is small, but can overwhelm when the options are numerous. Beware kitchen-sink visibility.

• Design systems that clearly indicate their status, possible actions, and consequences of those actions. Balance visibility and complexity by selectively ...

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