Kano Model Classifier
For each feature, answer two questions: how you feel if it is present, and how you feel if it is missing. The Kano evaluation table auto-classifies into Must-be, Performance, Attractive, Indifferent, Reverse, or Questionable.
Features
How the evaluation table maps answers to categories
For each feature you ask two questions: functional ("how do you feel if this is here?") and dysfunctional ("how do you feel if this is not here?"). The five answer choices on both axes map to a 5x5 matrix that the Kano team published in their original 1984 paper.
The intuitive cases: present = "I like it", absent = "I dislike it" → Performance. Present = "I like it", absent = "I can live with" → Attractive. Present = "I expect it", absent = "I dislike it" → Must-be.
The classifier here implements the standard mapping. Questionable means the answers contradict — usually the question was unclear and the survey should be reworded.