Say it like this
- We need to build a proof of concept first
- Let's run a quick PoC to validate this
- The proof of concept showed the idea was viable
Use it at work
Proposing
- Let's build a proof of concept before we commit.
- I can have a proof of concept ready in a week.
Results
- The proof of concept shows it works, but it's slow.
- The PoC went well. Let's plan the real version.
Being careful
- This is a proof of concept, not production code.
- Don't ship the proof of concept.
Don't say this
Proof of concept is a noun, not a verb. Use build, create, or develop with it.
Don't mix it up
| Term | What it is | Who writes or uses it | When |
|---|---|---|---|
| proof of concept | Shows an idea can work | Engineers | Technical risk |
| prototype | Early version to try the experience | Designers, engineers | User feedback |
| MVP | Smallest real product for users | Product | First launch |
Practice
Try it
4 quick exercises
1. Your team wants to test if a new technology will work. How do you say it?
2. Before we invest in the new payment system, let us create a _______ to validate the integration.
3. Which sentence uses proof of concept incorrectly?
4. Rewrite using proof of concept: We need to test if this idea will actually work before we spend a lot of money building it.
Say it out loud
Phrase 1 of 3
"We need to build a proof of concept first"
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More about proof of concept
Real examples(3)
- in a standup
"We're building a proof of concept for the real-time notification system this sprint to see if our approach scales."
- in a code review
"This proof of concept demonstrates that the API can handle the expected load, so we can move forward with the full implementation."
- in a team meeting
"The proof of concept for blockchain integration revealed some unexpected latency issues, so we need to explore alternative solutions."
More mistakes(2)
Handle with care. Do not use as a verb (saying you want to proof of concept something). It is a noun. Say build, create, or test a proof of concept instead.
- ✕The proof of concept already includes all user features.✓The proof of concept validates the core technical approach. The full version will include all features.
A PoC is minimal and focused on answering one key technical question, not implementing everything.
- ✕Our proof of concept is now in production.✓Our proof of concept succeeded, so we're building the production version.
A PoC is temporary and exploratory. Once successful, you build the full product separately.
Other forms(3)
- proof of concept noun (singular)
"The proof of concept for the payment gateway took two weeks."
- proofs of concept noun (plural)
"We completed three proofs of concept before choosing the best architecture."
- PoC abbreviation
"We shortened the timeline by running a PoC in parallel with other work."
Often used with(5)
- build a proof of concept · Most common action; to create and test the concept
- proof of concept phase · The stage or period when a PoC is being executed
- proof of concept succeeds or fails · The outcome that determines whether the approach is viable
- quick proof of concept · A short, fast PoC to quickly validate an idea
- proof of concept stage · The development phase before full implementation
Similar words(3)
- prototype · Similar but prototype often emphasizes user experience, while PoC emphasizes technical feasibility
- pilot project · Broader term; a pilot may include more features and sometimes real users, while a PoC is more focused and minimal
- spike · Agile term for a short investigation; narrower in scope than a full PoC
Opposites(2)
- full production release
- complete implementation
Questions(5)
- What does proof of concept mean in software engineering?
- A proof of concept is a small-scale test that demonstrates whether a technical idea or approach is feasible before investing in full development. It answers the question: Does this actually work? By building a minimal version first, teams reduce risk and avoid wasting resources on ideas that may not be practical.
- How do you use proof of concept in a sentence at work?
- Use it as a noun with action verbs like build, create, or develop. Examples: We need to build a proof of concept for the API integration. The proof of concept for the new database showed promising results. This PoC will help us decide whether to move forward with the feature.
- Is proof of concept formal or informal?
- Proof of concept is neutral in formality and is used in both casual standups and formal presentations. It is standard business and technical language used by engineers, managers, and executives across tech companies. The abbreviation PoC is very common in written communication and chat.
- How is proof of concept different from MVP?
- A proof of concept is earlier and narrower. It focuses on answering one specific technical question: Does this approach work? An MVP (minimum viable product) comes later and includes just enough features to test with real users and validate the business model. A PoC is internal; an MVP may be released to customers.
- When should you build a proof of concept?
- Build a PoC when you face high technical risk or uncertainty. Examples include testing new technologies, exploring architectural changes, integrating third-party systems, or validating complex algorithms. A PoC saves time and money by confirming the feasibility before full development.
