GOMS Example 1: PDA Text Entry

• goal: enter-text-Newton
  • move-pen-to-text-start
  • goal: enter-word-Newton ...repeat until no more words
    • write-letter ...repeat until no more letters
    • [select: goal: correct-misrecognized-word] ...if incorrect

• expansion of correct-misrecognized-word goal
  • move-pen-to-incorrect-letter
  • write-letter

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