Proof of concept (POC)
A proof of concept (POC) is a small-scale exercise built to test whether an idea is technically feasible, before any investment in a full product or MVP. It answers one question, can this be built at all, and stops there: it is not meant to look finished, work at scale, or be shown to real customers.
What is a proof of concept?
A proof of concept exists to remove a single technical or conceptual doubt before a team commits real budget to a project. It is internal by nature: the audience is the team and its stakeholders, not end users, and the code behind it is often thrown away once the question is answered. A POC that answers "yes, this integration works" or "no, this approach does not scale" has done its job, regardless of how rough it looks.
What a proof of concept typically includes
- A single assumption to test, stated clearly before any work starts.
- Minimal, often throwaway code, with no error handling, styling or edge cases covered.
- An internal audience only, never end users or paying customers.
- A tight timebox, from a few days to a couple of weeks.
- A clear go/no-go outcome once the test is run.
Proof of concept vs prototype vs MVP
| Aspect | Proof of concept | Prototype | MVP |
|---|---|---|---|
| Goal | Prove technical feasibility | Test look, feel and flow | Test real market demand |
| Audience | Internal team only | Internal team or select test users | Real, often paying, customers |
| Quality bar | Throwaway, no polish needed | Clickable or visual mock, not production code | Usable, production-grade for its scope |
| Typical outcome | A go/no-go decision | A validated design direction | Early users and real usage data |
How to run a proof of concept
Start by writing down the single question the POC must answer, and the criteria that will count as a pass or a fail; skipping this step is what turns most POCs into open-ended experiments. Build the smallest thing that can answer that question, reusing whatever existing tools or services get there fastest. Keep it timeboxed: a POC that drags on for months has stopped being a POC. Once it runs, document the result honestly, including what did not work, and make the go/no-go call before moving on to scoping the real project.
Common pitfalls
The most frequent mistake is skipping proper project scoping because "we already did a POC", when the POC only proved feasibility, not that the full solution is well specified. Another is over-engineering the POC itself, adding polish or edge-case handling that was never the point. A third, more costly one, is letting a proof of concept ship straight to production: since it was never built to be maintained or secure, it turns into technical debt the moment real users touch it. A POC is also not the place to gather stakeholder opinions on look and feel, that question belongs to a prototype once feasibility is settled.
Proof of concept at BeBranded
We run a proof of concept whenever a project depends on an unproven integration or a technical bet, before we scope or quote the rest of the work, as part of the consulting we do upfront on ambitious projects. It gives a client a clear answer on feasibility before a single day is billed against the full build.
FAQ
What is the difference between a proof of concept and a prototype?
What is the difference between a POC and an MVP?
How long should a proof of concept take?
Who is the audience for a proof of concept?
Can a proof of concept become the final product?
Do you need a proof of concept for every project?
