Kano Model
Some features can only disappoint, some delight — and every delighter is on a conveyor belt toward 'expected.'
- Term
- Kano Model
- Author
- Noriaki Kano (1984)
- Categories
- Must-be, performance, attractive (+ indifferent, reverse)
- Law of decay
- Delighters become basics over time
Forms & parts of speech
Definition in plain terms
The Kano model classifies product and service attributes by how they drive satisfaction: MUST-BE basics (their absence enrages, their presence earns nothing — the hotel's hot water), PERFORMANCE attributes (more is linearly better — speed, battery, storage), and ATTRACTIVE delighters (unexpected features that charm but whose absence costs nothing — yet). Two minor classes complete it: indifferent (nobody cares) and reverse (some users actively dislike). Kano's time law is the famous part: delighters decay into performance attributes and then basics as markets normalize them.
The mechanics
The survey method asks each feature twice — how would you feel if present (functional) and if absent (dysfunctional) — and the answer pairs map features to categories, separating what customers SAY matters from how satisfaction actually behaves. The strategy that falls out: fund basics to threshold (never beyond — gold-plating must-bes is waste), compete deliberately on chosen performance attributes, and keep a delighter pipeline because the conveyor belt never stops. Marketing inherits the categories directly: must-bes belong in reassurance copy (their absence is a dealbreaker objection), performance attributes in comparison content, delighters in launch stories and word-of-mouth bait.
When it matters
Reach for Kano at roadmap fights (it converts feature debates into category questions with survey data), at pricing-tier design (performance attributes are natural tier-separators; must-bes never gate), and at differentiation audits — when the deck's 'differentiators' are the category's must-bes, the positioning is reassurance wearing a cape. Re-run it periodically: the belt's movement IS the market's evolution.
Synonyms & antonyms
Synonyms
Antonyms
Origin & history
Created by Tokyo University of Science professor Noriaki Kano, published in the 1984 paper 'Attractive Quality and Must-Be Quality' (Hinshitsu, the Japanese quality journal) — extending Herzberg's two-factor motivation theory into product attributes, and giving the quality movement its satisfaction grammar.
Etymology: source.
Usage trends
Search interest for this term over the last five years:
Common questions
- What is the Kano model?
- Noriaki Kano's classification of attributes into must-be basics, performance features, and attractive delighters — by their satisfaction behavior.
- What is the Kano survey method?
- Each feature asked functionally and dysfunctionally ('if present / if absent') — answer pairs map features to categories.
- What is delight decay?
- Kano's time law — delighters become expected basics as markets normalize them, so the delighter pipeline must keep moving.
Related tools & calculators
Resources & people to follow
- paperKano et al. (1984) — 'Attractive Quality and Must-Be Quality'
- referenceQuality-management literature — the model's home
- referenceRGM analysis — must-bes are reassurance copy, not heroes
Curated, non-competitor resources verified per term.
Related training
Disciplines
Areas of marketing where kano model is a core concern: