In brief
- A PoC shows whether an approach can work in principle.
- A pilot shows whether the solution creates value in a limited real workflow.
- Production requires permanently owned and monitored operations.
- Movement between stages should be based on evidence, not an impressive demonstration.
A PoC tests the most important technical assumption
A proof of concept is an intentionally limited experiment. It might test whether relevant information can be retrieved, documents can be classified accurately enough or a business system can be connected. Speed and learning matter more than a complete user interface or production-grade architecture.
- One clearly stated technical or functional question
- A small but representative dataset
- A limited set of test cases and expected outcomes
- Documented limitations, failure modes and open assumptions
- No unplanned use as a production system
A pilot tests value in the real workflow
During a pilot, selected users work with real cases in a limited scope. This reveals whether the solution is understandable, fits existing roles and systems, and creates measurable value under everyday conditions. Support, feedback and error handling must already be part of the pilot design.
- Limited user group, duration and case types
- Real data with agreed access and protection requirements
- Comparison with the existing way of working
- Measurement of quality, adoption, time saved and correction effort
- Defined fallback and escalation paths
Production means permanently owned operations
A production solution becomes part of a binding business process. It must remain controllable when components change, fail or behave unexpectedly. Models, prompts, data sources and integrations need versioning and a controlled change process.
- Roles, permissions, privacy and security controls
- Repeatable tests and approvals before changes
- Monitoring of quality, errors, latency and cost
- Incident, support, recovery and shutdown procedures
- Documented ownership and funded operations
- A plan for model, provider and interface changes
Clear criteria separate the stages
The label is less important than the evidence available. A PoC should not become a pilot until its central assumption has been demonstrated. A pilot should not move into production while value, adoption or operational readiness remain assumptions.
| Stage | Central question | Degree of realism | Gate for the next step |
|---|---|---|---|
| PoC | Can the most important technical or functional assumption be met in principle? | A bounded representative dataset, usually outside the actual business process. | The core function meets predefined quality; limits and open assumptions are documented. |
| Pilot | Does measurable value emerge with real users and cases in day-to-day work? | A limited user group, real data and a real workflow with support and fallback. | Quality, value, adoption and correction effort meet targets over a sufficient period. |
| Production | Can the solution be operated safely, reliably and economically over time? | A binding process with complete roles, integrations and operating requirements. | Security, privacy, evals, monitoring, support, cost, change and shutdown are approved. |
| Stop or improve | Which assumption has been disproven or remains unsupported? | Findings and failures remain useful even if the project does not continue. | Record a reasoned decision to stop, change scope or run a targeted new test. |
Choose the smallest useful next step
The stages are not a mandatory sequence. If technical feasibility is already well established, a project can begin with a limited pilot. If it is unclear whether a model can perform the central task at all, a small PoC prevents premature integration and operational work.
- Step 1
Name the uncertainty
Identify which statement needs evidence next.
- Step 2
Choose the stage
Test technology in a PoC, workflow value in a pilot or permanent operation in production.
- Step 3
Define success criteria
Agree quality, value, risk, effort and cost in advance.
- Step 4
Set boundaries
Limit users, data, actions and duration, and define a fallback.
- Step 5
Decide
Stop, improve or enter the next stage with a documented mandate.
Example: Processing incoming invoices
A PoC uses 150 representative invoices to test whether supplier, amount, purchase order and payment terms can be extracted reliably. In the pilot, a small accounts-payable team works with real invoices for six weeks; every extracted value is confirmed before posting and processing time is compared with the previous workflow. Only the production implementation adds roles, auditable logs, monitoring, failure procedures, support and a controlled release process for model and prompt changes.
What to remember
Name each stage after the question it can prove. Technical feasibility, real-world value and sustainable operations are three different forms of evidence.
Sources and further reading
These primary sources provide further detail on definitions, technical foundations or responsible use.
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