How to build an MVP that actually tells you something
By Terry Chapman, Founder & CEO, Start Up Partners
Founder and CEO of Start Up Partners, a venture studio in Birmingham, Alabama backed by Innovate Alabama. Decades building technology ventures across medical imaging, data analytics, marketplaces, and medical devices.
Once a founder has proof that a problem is real, the next question is always the same: what do we build first? Learning how to build an MVP, a minimum viable product, is where a lot of promising ideas quietly go sideways. Founders either ship something so thin it tests nothing, or they spend nine months polishing a product no one has agreed to pay for. The version that works lives in the narrow space between those two mistakes.
We build products alongside founders for a living, so we have watched both failure modes up close. Here is how we think about an MVP, and the process we run to make sure the first thing you ship actually earns you an answer.
What an MVP is, and what it is not
An MVP is the smallest version of your product that lets a real customer get real value, and in doing so gives you a real answer to your riskiest question. It is not a prototype, not a slide-deck demo, and not a stripped-down copy of the grand vision you will build someday. It is an experiment with a user attached. Every feature it contains should be there to test a belief, not to impress anyone.
Start from the question, not the feature list
The mistake we see most often is a feature list dressed up as a plan. Founders arrive with twenty things the product should do and no clear sense of which one the whole business depends on. Before you build anything, name the single thing you most need to learn. This works best once you have already validated the problem is real, so the MVP can focus entirely on testing the solution rather than the problem.
Three questions get you to the right scope faster than any feature brainstorm:
- What is the one assumption that, if wrong, sinks the whole idea? That is what your MVP exists to test.
- Who is the single first user? Not a market, not a persona pile, one describable person you can actually reach.
- What is the one job they hire the product to do? If you cannot say what your product is for in a sentence, the MVP will sprawl.
How to build an MVP in five steps
When a founder asks us how to build an MVP without disappearing into a build cave for a year, we run the same five steps. None of them require the finished product you are picturing.
- 1
Name the riskiest assumption
Write down the one belief the business rests on. Maybe it is that people will pay, that they will switch from the tool they use now, or that they will trust a stranger with the task. That single assumption, not your feature wish list, is what the MVP is built to test.
- 2
Map the one core action
Trace the shortest path a real user takes to get real value, from the moment they arrive to the moment the product actually helps them. That single end-to-end action is your MVP. Everything that is not on that path is a candidate to cut.
- 3
Cut everything that is not the core action
Accounts, settings, dashboards, a mobile app, that clever second feature. If it does not serve the one core action, it waits. Being ruthless here is the whole skill. Most founders cut too little, then wonder why the build took three times as long as planned.
- 4
Build the smallest thing that delivers the value for real
Ship a version a real person can use and genuinely benefit from, even if the seams show. A landing page with a working payment button, a no-code tool, or a service you run manually behind the scenes can all count. Real value beats a polished shell every time.
- 5
Put it in front of real users and watch
Get it into the hands of the actual first users you named, then watch what they do, not just what they say. Do they come back? Do they pay? Do they hit a wall and quit? Their behavior is the answer you built the MVP to get.
The features you will be tempted to add, and should not
Every founder feels the pull to add just one more thing before launch. It almost always feels responsible in the moment and almost always costs you weeks you did not have. These are the usual suspects we help founders leave out of a first build:
- User accounts and login, when a simple link or a manual invite would do for ten users
- An admin dashboard nobody but you will look at for months
- A second or third feature, before the first one has proven it matters
- A native mobile app, when a web page tests the idea just as well
- Integrations and settings that assume a scale you have not reached yet
How to know your MVP worked
An MVP does not pass or fail on whether people are nice about it. It passes on evidence. Here is what we look for before we tell a founder it is time to build the next layer.
- 1Real users completed the one core action without you standing over their shoulder
- 2Some of them came back, or paid, or asked when they can have more
- 3The place they got stuck points clearly at what to build or fix next
- 4You learned whether your riskiest assumption was true, which is the whole point
Sometimes the honest answer is that the assumption was wrong. That still counts as a win. You found out in six weeks and a small budget instead of a year and your savings, and you now know exactly where to point next.
Where a studio fits
Scoping an MVP is hard precisely because you are close to it, and everything feels essential when it is your idea. That is where a second set of experienced hands earns its keep. This is one of the reasons founders end up working with a venture studio: we do not just advise on what to cut, we sit in the build with you and help you ship the right small thing. When the first version works, we keep going, from a sharper product to the brand and the go-to-market that carry it to real customers.
Frequently asked
How long should it take to build an MVP?
Weeks, not quarters. If your plan to build an MVP stretches past a couple of months, it is almost always a full product in disguise. The point is to get a real answer fast, so scope it to the shortest path that still delivers genuine value to a real user.
What is the difference between an MVP and a prototype?
A prototype shows how something could work and usually lives in a demo or a design file. An MVP is a working product a real customer actually uses to get value. A prototype tests whether you can build it; an MVP tests whether anyone wants it enough to use or pay for it.
Do I need to write code to build an MVP?
Often no. A landing page with a real payment button, a concierge service you run manually behind the scenes, or a no-code tool can all be legitimate MVPs. The goal is to test the riskiest assumption with the least building, and sometimes the least building is no code at all.
How much should it cost to build an MVP?
Less than you fear if you scope it to one question. Cost balloons when an MVP tries to do everything. Strip it to the single core action that delivers value, and the cost, and the timeline, come down with it.
Should I build an MVP or keep validating my idea?
Validate the problem first, then build the MVP to test the solution. If people cannot even describe the problem the way you do, more building will not save you. Once the problem is clearly real and you know who will pay, an MVP is the right next step.