In short
Lean Startup validates ideas by building a minimum viable product and learning from real market feedback through build-measure-learn loops. Working Backwards validates earlier and cheaper - on paper, by writing the press release and FAQ before any build. The two are complementary: write the PR/FAQ to decide what's worth an MVP, then run Lean Startup loops to learn.
Side by side
| Dimension | Working Backwards | Lean Startup |
|---|---|---|
| Validation happens | On paper, pre-build | In market, via MVPs |
| Core loop | Write → so-what test → rewrite | Build → measure → learn |
| Cost to test | An afternoon | An MVP build cycle |
| Best for | Deciding what to build | Learning what works once live |
When to use Working Backwards
- You want to filter ideas before spending on an MVP.
- You need internal alignment on the customer and value.
- Building even an MVP is expensive or slow.
When to use Lean Startup
- You have an idea worth a small build and want real data.
- You're optimizing an existing product toward fit.
- Market feedback will teach you more than analysis.
The verdict
Sequence them: Working Backwards decides which ideas earn an MVP, and Lean Startup's build-measure-learn loop takes it from there. The PR/FAQ keeps you from running expensive loops on a doomed idea.
Write the press release before you write the code
Turn your idea into an Amazon-style PR/FAQ, a scored verdict, and a PRD - free to start.
Start your PR/FAQ
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