Walk-up-and-use

In allocating tasks, one must also consider what will be assigned to support resources. If the system is not a walk-up-and-use system but one that will require learning, then designers must identily what knowledge is appropriate to allocate to support resources (e.g., training courses, manuals, online... 

Lewis, Poison et al. 1990] C. Lewis, P. Poison, C. Wharton and R. J. Testing a Walkthrough methodology for Theory-based design of Walk-up-and-use Interfaces, in CHI-90, pp. 235-241, ACM Press, 1990. 

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