"매 startup = search for repeatable + scalable business model". Steve Blank 의 customer development + Eric Ries 의 Lean Startup 이 base. 2026 AI wave 에선 매 1인 founder 가 Claude/Cursor 로 prototype → seed 까지 < 30 일 의 cycle.
매 핵심
매 기본 정의 (Blank/Ries)
Startup ≠ 매 small business. 매 "search for repeatable, scalable, profitable business model" 하 temporary org.
# Discovery Interview (30 min)
## Warm-up
- Tell me about your role + day-to-day.
## Problem (no pitching!)
- Walk me through last time you <did task>.
- What was hardest part? Why?
- What did you do to solve it? (existing workarounds)
- How much time/money does <pain> cost?
## Solution probe (only after problem confirmed)
- If a tool did <X>, how would you use it?
- Who else needs to be involved in buying decision?
## Close
- Who else should I talk to?
- Can I follow up in 2 weeks?
MVP build (2026 AI startup stack)
# Day 0–3: validate pain via 10 interviews# Day 4–10: prototype with Claude Code + v0 + Supabase
pnpm create next-app@latest mvp --typescript --tailwind --app
cd mvp
pnpm add @supabase/ssr ai @ai-sdk/anthropic
# Day 11–14: 5 design partner deploy via Vercel
vercel deploy --prod
# Day 15+: weekly Build–Measure–Learn cycle
Build–Measure–Learn loop
// 매 weekly cycle 의 instrumentation
import{track}from"@vercel/analytics";exportasyncfunctiononUserAction(action: string,props: object){awaittrack(action,props);// PostHog/Mixpanel/Amplitude
}// Measure: cohort retention, activation funnel
// Learn: 매 weekly 5-customer call → hypothesis update
// Build: 매 1 hypothesis test per sprint
PMF metric dashboard (PostHog SQL)
-- Sean Ellis-style retention cohort
SELECTdate_trunc('week',signup_at)AScohort,COUNT(DISTINCTuser_id)FILTER(WHEREactive_in_week_4)*1.0/COUNT(DISTINCTuser_id)ASw4_retentionFROMusersGROUPBY1ORDERBY1DESC;-- 매 30%+ flat W4 retention = PMF candidate
Pivot decision matrix
# 매 "pivot or persevere" — Riesdefpivot_signal(metrics):# No traction after 3 build-measure-learn cycles?ifmetrics.weekly_active_growth<0.05andmetrics.cycles>=3:return"PIVOT"ifmetrics.retention_w4>0.30andmetrics.organic_share>0.20:return"PERSEVERE / SCALE"return"CONTINUE LEARNING"
Fundraising data room essentials (2026)
## Seed Data Room
- Pitch deck (10-12 slides, Sequoia/YC format)
- 매 financial model (3-year, monthly first 12mo)
- KPI dashboard (live link to Mixpanel/PostHog)
- Customer letters / testimonials (5+)
- Cap table (Carta export)
- 매 incorporation docs (Delaware C-Corp)
- IP assignment, founder agreements
- AI compliance: 매 SOC2 Type 1 progress, EU AI Act risk class
매 결정 기준
상황
Approach
매 Idea 단계
Customer Discovery 만, 매 build 전 10+ interview
Prototype 후 traction X
Lean iteration, 매 pivot 고려
매 Seed 단계, design partner 확보
Validation: contract / LOI 5+
Series A 준비
Repeatable sales motion 입증 (CAC payback < 18mo)
AI wrapper 우려
Workflow integration + proprietary data moat 의 강화
기본값: 매 Lean Startup + Customer Development 결합 — 매 Build–Measure–Learn weekly cadence.
언제: 매 idea validation, customer interview synthesis, pitch deck draft, KPI dashboard SQL 작성, market sizing (TAM/SAM/SOM).
언제 X: 매 hard customer signal 의 대체 X — 매 LLM 가 진짜 customer pain 의 hallucinate 가능. 매 actual interviews irreplaceable.
❌ 안티패턴
Build first, validate later: 매 6개월 build → 매 nobody wants. Customer dev 가 먼저.
Vanity metrics: signup count, page view 만 추적 — 매 retention/revenue 의 무시.
매 founder–market mismatch: domain 의 unfamiliar — design partner 의 trust 약화.
AI wrapper without moat: GPT-5 / Claude API call only → foundation model 이 흡수 시 사라짐.
Premature scaling (Marmer): PMF 전 매 sales team 의 hire — 매 burn rate 폭주.
🧪 검증 / 중복
Verified (Steve Blank "Four Steps to the Epiphany", Eric Ries "Lean Startup", YC startup library 2026).
신뢰도 A.
🕓 Changelog
날짜
변경
2026-05-08
Phase 1
2026-05-10
Manual cleanup — Lean/Customer Dev + 2026 AI startup wave 정리