What Is a Minimum Viable Product — And Are You Building It Wrong?

The concept of a Minimum Viable Product has been around for more than a decade, popularized by Eric Ries in The Lean Startup. And yet, it remains one of the most misunderstood concepts in the startup world. Most founders either build too much or too little — and both mistakes are costly.

An MVP is the smallest version of your product that allows you to test your most critical assumption. Not the smallest version of your full product vision. The smallest thing that tests your core hypothesis. Your full product vision might take 18 months and a large team to build. Your core hypothesis can often be tested in weeks.

Common ways founders get MVP wrong — building too much is the most common mistake. Founders want to build the full product before they release anything, afraid that without all the features, users won’t get it. But this approach means waiting months to get real feedback, and by the time they launch, they may have built the wrong thing entirely.

Building too little — some founders interpret minimum to mean barely functional. But an MVP so stripped down that users can’t experience the core value proposition isn’t testing anything useful.

Testing the wrong assumption — what’s the most important thing you need to learn? That’s what your MVP should test. If you build an MVP that tells you users will click a button, but the real question is whether they’ll pay, you’ve learned something — but not the thing you needed to know.

Not defining success criteria upfront — before you launch your MVP, define what you’re looking for. What outcome would tell you your assumption was right? What would tell you it was wrong? Without this, you’ll interpret ambiguous results in whatever way confirms your existing beliefs.

A good MVP process — identify your most important assumption, design the smallest test, run it with real potential customers, and measure the results against your criteria. At WeSolve, we run structured MVP processes with our clients — helping them learn faster and build less of the wrong thing.