Lean startup Study Guide

📖 Core Concepts Lean Startup – A hypothesis‑driven method that shortens development cycles by building minimum viable products (MVPs), gathering real‑customer feedback, and iterating fast. Validated Learning – Learning that is directly tied to measurable customer behavior, not intuition. Build‑Measure‑Learn (BML) Loop – The repeatable cycle: build an MVP → measure how customers respond → learn whether to pivot or persist. Pivot – A structured change in strategy that tests a new fundamental hypothesis about the product, market, or growth engine. Innovation Accounting – A three‑stage metric system that tracks progress of assumptions (from vanity to actionable metrics). Business Model Canvas / Lean Canvas – One‑page visual tools that map the key elements of a startup’s value proposition, customers, and revenue/ cost structure. Customer Development – Parallel process to product development that validates the problem, solution, and business model through four steps: discovery, validation, creation, and company building. 📌 Must Remember MVP goal: Test the core business hypothesis with the smallest effort. Actionable vs. Vanity Metrics: Actionable → drives decisions (e.g., cohort retention); Vanity → looks good but doesn’t inform (e.g., total sign‑ups). Split Test (A/B) Rule: Randomly assign users concurrently to each variant to preserve statistical validity. Three Levels of Innovation Accounting: Value‑Creation Metrics (e.g., early adoption, churn). Growth‑Engine Metrics (e.g., activation, referral). Revenue‑Metrics (e.g., LTV, CAC). Pivot Triggers: Repeatedly failing to achieve the desired learning or hitting a hard metric ceiling (e.g., <5% conversion after 3 iterations). Lean vs. Cost‑Cutting: Lean seeks cost efficiency by eliminating waste, not by slashing budgets. 🔄 Key Processes Customer Development → Lean Startup Integration Discovery: Interview & test problem/solution hypotheses. Validation: Run MVP sales/purchases → confirm repeatable sales roadmap. Creation: Scale acquisition channels. Company Building: Formalize ops. Build‑Measure‑Learn Loop Build: Create MVP (prototype, landing page, concierge service). Measure: Choose actionable metrics; run split tests if needed. Learn: Compare results to hypothesis → decide pivot or persevere. Innovation Accounting Workflow Define baseline metric → set target → run experiment → measure improvement → decide next step. 🔍 Key Comparisons MVP vs. Full Product – MVP = minimal features for hypothesis test; Full product = complete feature set for market launch. Actionable Metric vs. Vanity Metric – Actionable = drives decisions (e.g., conversion rate); Vanity = looks impressive but not predictive (e.g., page views). Pivot vs. Persevere – Pivot = change core hypothesis; Persevere = continue with current hypothesis after positive learning. Lean Canvas vs. Business Model Canvas – Lean Canvas replaces “key partners/activities” with “problem/solution” to focus on early‑stage risk; Business Model Canvas is broader, suited for mature ventures. ⚠️ Common Misunderstandings “Lean = doing less.” → Lean means doing the right things efficiently, not simply cutting work. “Lean is just cost‑cutting.” → It’s about waste elimination and value delivery, which often reduces costs as a by‑product. “MVP must be a perfect product.” → The MVP is intentionally incomplete; its purpose is learning, not polishing. 🧠 Mental Models / Intuition “Fast‑Fail → Fast‑Learn” – Treat each experiment as a low‑cost bet; if it fails, you gain knowledge quickly. “Feedback Loop as a Thermometer” – The BML loop tells you whether the market temperature is rising (product‑market fit) or cooling (need to pivot). “Waste = Anything that doesn’t move the needle on your hypothesis.” 🚩 Exceptions & Edge Cases Regulated Industries – MVP may need to meet compliance (e.g., HIPAA) before release; treat compliance as a non‑negotiable constraint. High‑Touch B2B Sales – A concierge MVP (manual service) can replace a software prototype for early learning. Network Effects – Early metrics may look flat; focus on growth‑engine metrics (referrals, virality) rather than raw adoption. 📍 When to Use Which Choose Lean Canvas when you need to crystallize problem‑solution‑metrics quickly for a nascent startup. Use Business Model Canvas for later‑stage ventures with established partners and revenue streams. Deploy Split Testing when you have ≥100 users per variant to achieve statistical power. Apply Innovation Accounting after the first MVP shows some traction; before that, rely on qualitative learning. 👀 Patterns to Recognize Repeated Low Conversion Across Experiments → Signal to pivot or revisit problem hypothesis. Rapid Growth in Early Adoption Followed by Plateau → Indicates product‑market fit for early adopters but missing a scalable growth engine. High Vanity Metrics + Low Actionable Metrics → Typical “buzz” without real traction; deprioritize. 🗂️ Exam Traps Choosing “cost‑cutting” as the main benefit of Lean – The exam will likely ask for value‑creation or waste reduction instead. Confusing “pivot” with “iteration.” – A pivot changes the underlying hypothesis; iteration refines execution of the same hypothesis. Selecting “full product launch” as the MVP definition – Remember: MVP is minimum to test the hypothesis, not a complete market release. Assuming any metric is actionable – Only metrics that directly inform the next decision (e.g., cohort retention) qualify. --- Study tip: Sketch a quick Build‑Measure‑Learn diagram, label each stage with the corresponding metric type (vanity vs. actionable), and annotate the decision point (pivot vs. persevere). This visual cue will trigger the full process under exam pressure.