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Session 9

Actions turn screens into product behavior

  • Actions are promises.
  • States are product feedback.
  • Errors need prevention, explanation, and recovery.
Teaching sequence
  1. 1ActionWhat can the user do next?
  2. 2StateWhat does the product say is happening?
  3. 3ErrorWhat happens if the action cannot continue?
  4. 4RecoveryHow does the user return to a useful path?