Understanding HCI

Cognitive Walkthrough

Cognitive Walkthrough Example 2

Programming the VCR

The person wants to record a programme with videoplus number 01243

  1. Press videoplus button - screen flashes OK simple, clear language
  2. Press 0-1-2-4-3 - screen displays numbers + message ‘press videoplus to end’ OK, but need to swap glasses on and off to check
  3. Press videoplus - returns to TV - OK simple enough. Should we have ‘end’ button?
  4. Press TimerRec - screen goes fuzzy - Problem! Person may forget to do this!