Validation
Proof of Concept Ideas: How to Test a Software Idea Before You Build
By Tom Bore · 1 August 2026 · 7 min read
A proof of concept answers one narrow question: can the core thing work at all? Not whether people will buy it or whether it makes a business, only whether the hard part runs. Answer that cheaply before you build.
People swap "proof of concept", "prototype" and "MVP" around, and each tests something different. A proof of concept (PoC) tests feasibility. A prototype tests usability and design. An MVP tests demand (more on how the three differ). When you don't know whether the hard part is doable, build a PoC first. It's the fastest and cheapest of the three.
When you need a proof of concept
Not always. Reach for a PoC when your idea leans on something unproven:
- A technical bet: can we get accurate results from this model, sensor or dataset?
- An integration you don't control: will this third-party system give us what we need, and keep giving it?
- A performance question: can this run fast enough to use?
- A feasibility question a stakeholder needs answered before releasing budget.
When the real risk is whether anyone cares, skip the PoC. A landing page or a manual service will teach you more.
Proof of concept ideas you can run cheaply
The best PoCs stay small and disposable. Four that work:
1. The single-path spike
Build the one risky path end to end and nothing else. No accounts, no interface to speak of, no error handling. If the core mechanic works in a bare script, you have your answer.
2. The wizard-of-oz
Put a real front end on it and do the clever part by hand behind the scenes. The user experiences the concept as if software runs it, and you prove the workflow earns its keep before you build the automation.
3. The data dry-run
For anything data- or AI-driven, run your approach over a real sample by hand or in a notebook. Is the output accurate and useful enough? That question sinks more projects than any amount of UI work.
4. The integration probe
Before you design around a third-party API, write the smallest script that calls it with your real data. Rate limits, missing fields and surprise costs cost far less to find now than after you've built on top.
How to run one without wasting the effort
- Write the question down. One sentence, with a clear pass or fail. "Can we match a supplier to a request in under two seconds with 90% accuracy?" beats "see if the matching works".
- Timebox it. Days, not weeks. You want a fast answer, not a polished artefact.
- Cut everything else. No login, no styling, no edge cases. Feasibility only.
- Decide in advance what each outcome means. Know what a "no" looks like before you start, or you'll explain it away.
A PoC has done its job the moment it gives you a clear yes or no. Once it starts growing features, you've moved on to building the product.
In short
A proof of concept de-risks the unknown before you invest. Pick the riskiest assumption, build the smallest thing that tests it, and take the result at face value. Prove the hard part works and you've earned the MVP. That's how we start at Honk Labs: test the problem, prove the hard part, then build lean. If you have something at that stage, tell us about it.