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C10.13

Mode Problems in Multifunction Physical Controls

Cards in this group · 4

  1. C10.13.1One physical control doing different jobs in different modes is a mode effect in hardware form
  2. C10.13.2After a mode switch the control usually looks the same, so people keep the previous mode’s expectations
  3. C10.13.3When frequent and infrequent functions share a control, mis-operation cost should bias toward making the infrequent function safer
  4. C10.13.4Mode ambiguity needs its own lamp or legend, not reliance on remembering the current mode