--- title: Kano Model — definition | RGM® Glossary url: https://realgrowthmatters.com/glossary/kano-model/ updated: 2026-06-10 source_html: https://realgrowthmatters.com/glossary/kano-model/ --- # Kano Model Ka·no mod·el/ˈkɑnoʊ ˈmɑdəl/noun 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 delighter · noun (its export) An unexpected satisfaction driver. "Free returns was a **delighter** in 2010 — today it's a must-be. The belt moved." ## 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. **Worked example.** A project-management SaaS lists 'real-time sync' as its homepage hero differentiator. The Kano survey delivers the news: sync is a must-be (its absence infuriates; its presence earns a shrug) — the brand has been caping a basic. The real performance attribute (automation depth) and a genuine delighter (the weekly auto-digest customers mention unprompted) get promoted: homepage leads with automation comparisons, the digest anchors the launch story, sync moves to the reassurance checklist. Win rates improve, and the roadmap stops gold-plating the hot water. **Failure modes to watch.** Gold-plating must-bes while a chosen performance attribute lags; marketing basics as differentiators; ignoring the decay law until the delighter budget defends old news; and asking customers what they want instead of running the two-question method. ## Synonyms & antonyms ### Synonyms Kano modelKano analysis ### Antonyms flat feature listsvote-count prioritization ## 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](https://en.wikipedia.org/wiki/Kano_model). ## Usage trends Search interest for this term over the last five years: [View interest-over-time on Google Trends →](https://trends.google.com/trends/explore?q=kano%20model&date=today%205-y) ## 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 - tool[Funnel drop-off analyzer](/tools/funnel-drop-off-analyzer/) ## 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 - module[Growth marketing foundations](/training/growth-marketing-foundations/) ## Disciplines Areas of marketing where kano model is a core concern: [Strategy](/training/growth-marketing-foundations/)[Brand strategy](/training/growth-marketing-foundations/) ## Read next ## Related terms [Value proposition](/glossary/value-proposition/)[Product-market fit](/glossary/product-market-fit/)[Customer satisfaction score](/glossary/customer-satisfaction-score/)[Brand positioning](/glossary/brand-positioning/)[North star metric](/glossary/north-star-metric/) ## Sources 1. trends[Google Trends — "kano model"](https://trends.google.com/trends/explore?q=kano%20model&date=today%205-y)