[mobile] principles

These principles are critical to [mobile]. A set of general top level needs for mobile users.


Mobile users are contantly interrupted by a multitude of notifications and the good old-fashioned phone call. Content needs to be considered as part of a total cognitive load rather than a local one. Save states, contextual affordance and good signposting can help mitigate these issues.


Most mobile interaction is done with thumbs, then fingers, then voice. Make touchpoints larger, think about placement of components and design for digits


Contextual signposting and helpers can frame the experience. Provide clarity and reinforce focus as the experience may not be the primary or even secondary use.


Users are not tied to their desks. Information must be geographically relevant, contextual and simple to understand on the move, or in unfamiliar surroundings.


Typing on mobile is error prone and fiddly. Use smart defaults and input helpers.


Extraneous UI can cause cognitive overload and lessen focus. Good design is reductive. 


Users follow intuitive patterns and conventions. Navigation should be familiar and simple.


Behaviours and needs change on the go. Content design and delivery should reflect ths.


Speed on mobile is critical. Users will abandon a slow experience and long loading times.

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