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PoC development

A working proof of concept that tests your riskiest integration first: authentication, data contracts and failure behaviour under load.

Proven in production

Results from work we have shipped

WislaCode helped Verysell Group Applied AI Lab explore the current state and future of AI testing, turning uncertainty into clear, actionable insights.

40+
analyses, 12 papers, 8 experts
5 weeks
of research
30% ROI
on the structured goals
From the case files: Verysell Group Applied AI Lab - Exploring the state and future of AI testingWalk through our case studies

How a PoC engagement runs?

Step 1Ideation and analysis

Collaborate with our experts to shape your idea and intended outcomes. Assess technical feasibility and likely challenges. Define the core features and behaviours to be validated in the PoC.

Step 2Solution design

Create wireframes and prototypes to visualise the concept. Develop a technical architecture that supports scalability and integration. Align the design with your brand identity and user expectations.

Step 3PoC development

Build a functional prototype with essential features for validation. Ensure the build follows best practices for scalability, performance, and security. Integrate necessary technologies to simulate real‑world scenarios.

Step 4Testing and validation

Run rigorous tests to evaluate functionality, usability, and performance. Collect feedback from stakeholders and early users to validate the concept. Refine the solution based on clear insights from testing.

Step 5Presentation and recommendations

Deliver the PoC in a format ready for stakeholder demonstration. Provide practical recommendations for next steps, including enhancements, risks, and dependencies.

What we build to prove a concept?

Integration feasibility spikes

A thin but real connection to the system that worries you - a core banking platform, a payment provider, a legacy back office - proving authentication, data contracts and failure behaviour before any architecture is committed to it. The riskiest dependency gets tested first, not last.

Performance and load baselines

Measured behaviour of the critical path under realistic data volumes and controlled load. Capacity claims in a business case should rest on numbers observed in conditions resembling yours, not on vendor benchmarks, and a baseline gives delivery a target it can be held to.

AI and data feasibility

Model behaviour tested on your actual data against an agreed evaluation set: quality, coverage and failure modes. AI concepts fail on data far more often than on algorithms, so we put the data under test before any capability is promised to stakeholders.

Clickable validation prototypes

Low-fidelity journeys first to move fast, high-fidelity where stakeholder credibility demands it. Built to test whether users actually do what the business case assumes they will, with feedback gathered against defined questions rather than collected as general impressions.

Architecture spikes

A working skeleton of the contested design decision - an event flow, a data pipeline, a synchronisation strategy - run end to end with realistic inputs. Arguments between architectural options get settled by observed evidence instead of by whoever holds the strongest opinion in the room.

Compliance and data-handling proofs

Evidence that regulated data can move through the proposed design lawfully: consent flows, retention, residency and audit requirements surfaced while they are still cheap to address. For fintech and healthcare concepts this is often the assumption that actually decides feasibility.

An idea worth testing before it is worth funding?

Tell us the claim to prove and we will scope the smallest honest experiment.

In practice

What shapes the work

The question a PoC has to answer

A proof of concept exists to support one decision: commit to the build, change the approach, or stop. Before that decision, the case for a project rests on opinion - an architect believes the integration will hold, a founder believes the data is good enough, a vendor believes the platform will take the load. Budget holders are right to distrust all three. A PoC replaces belief with measurement, at a cost small enough that a negative answer is affordable.

The first piece of work is therefore not code but framing. We write down what must be true for the project to be worth building, turn each assumption into a testable hypothesis, and agree in advance what evidence would count as proof - and, just as importantly, as disproof. If a result cannot change the decision, we do not spend time producing it.

That framing is what separates a proof of concept from an early build. A build asks how to make the thing; a PoC asks whether it should be made at all. Keeping that second question primary is the discipline, and it is why a good PoC is allowed to fail.

What the research client said

We collaborated with WislaCode on a product strategy development project and gave the highest marks for this contractor. The WislaCode team delivered on time and with outstanding quality. I want to mention the team's transparency while running the project - everything was trackable, visible and manageable.

Mikhail Krasnov, Executive Chairman, Verysell Group
Scope

What is included in a PoC engagement?

A PoC is a production scope in miniature: a fixed time-box, named hypotheses and a decision at the end. Every engagement includes the same disciplines, scaled to the assumptions under test.

01

A framing workshop that turns your idea into written hypotheses, success criteria and an explicit list of what the PoC will not test.

02

A technical architecture sketch covering the integration points, data flows and constraints the validation build has to respect.

03

Wireframes or a clickable prototype where user behaviour is part of the question, validated with stakeholders before engineering effort is spent.

04

A working validation build that exercises the riskiest paths end to end, using real services where possible and stubs where not.

05

Structured testing against the acceptance criteria agreed in the framing workshop, with every result recorded against the hypothesis it answers.

06

A risk register that names each open threat to delivery, its observed evidence and a costed mitigation.

07

A final decision pack: findings, a go or no-go recommendation, and effort estimates for the step that follows.

At handover you own everything the time-box produced: code, prototypes, test data, findings and the decision pack. Nothing is licensed back, and nothing requires our involvement to use.

Frequently asked questions
What is a PoC in software development, and when should we choose it over a prototype or MVP?

A proof of concept (PoC) is a focused validation exercise that tests feasibility and de‑risks the riskiest assumptions before full delivery. It answers “Can this work?” rather than “What will it look like?” (prototype) or “Will people buy it?” (MVP). Choose a PoC when uncertainty is technical or operational: architecture feasibility, integrations, performance, data handling, or compliance. Typical PoC outputs include architecture spikes, mock services, API proof points, and performance baselines in a time‑boxed window. If risk is mostly experiential, a prototype may be enough. If feasibility is proven and you need real usage evidence, move to an MVP. Many teams run a short PoC, validate UX with a prototype, then ship an MVP for market learning. A well‑scoped PoC reduces cost, clarifies the roadmap, and enables an objective go/no-go decision.

How do you scope and plan a PoC to stay time‑boxed and avoid scope creep?

We begin with hypotheses, constraints, and success criteria that define what the PoC must prove and what is out of scope. We prioritise a few validation threads - typically one technical (integration feasibility or performance target), one product (user value), and one delivery (dependency risk), each with acceptance criteria, metrics, and a clear test method. To stay time‑boxed, we use stubs and mock services, seed datasets, and the lowest‑effort path that proves feasibility. Daily risk checkpoints, a mid‑point cut, and a fixed end‑date ensure focus. The output includes demoable artefacts, findings, risks, and recommendations with effort estimates for the MVP. Every task must tie to a hypothesis, if it doesn’t prove or disprove a critical assumption, it waits for the MVP. This keeps the PoC small, fast, and conclusive.

What deliverables should we expect from a PoC engagement?

Expect decision‑ready outputs: a demoable PoC build that proves key assumptions; technical notes on architecture options, integration feasibility, performance baselines, and security considerations; and a concise risk register with mitigations. Discovery artefacts include hypotheses, success criteria, and acceptance tests; UX scope may include wireframes or clickable prototypes and user feedback notes. You also receive a practical roadmap to MVP with effort estimates, dependency mapping, and phased prioritisation. For compliance‑sensitive contexts, we add data handling approaches, consent flows, and audit needs. Where useful, we provide spike code, mock services, and test datasets so your team can reproduce results. The full pack supports stakeholder validation, a clear go/no‑go decision, and a smoother transition to delivery.

How do you handle integrations, performance, and security within a PoC’s limited scope?

We target the riskiest aspects with minimal effort. For integrations, we validate authentication, payload contracts, idempotency, and error handling using mock services first, then a thin real integration. For performance, we baseline the critical path - key API response times, page loads with realistic data, and queue behaviour under controlled load - to show scalability pathways. For security, we demonstrate sound foundations: secrets management, basic access controls, safe data handling, and document hardening for the MVP (encryption, audit, compliance controls). This yields credible proof points - architecture options that work, performance tracking to targets, and security considerations that won’t derail delivery, while keeping the PoC lean, time‑boxed, and affordable. Findings feed the risk register and MVP roadmap.

What timeline and budget range are typical for a PoC, and what variables affect them most?

Most PoCs complete within four to eight weeks, shaped by uncertainty level, integration access, and the need for user research. Narrow technical spikes (a single integration or performance concern) can finish in two to four weeks. Broader PoCs with discovery, prototyping, and multiple integrations trend towards six to eight weeks. Budget depends on team mix (engineering, UX, QA), environment setup, and third‑party access. The biggest variables are integration readiness (sandboxes, documentation, credentials), sample data availability, and stakeholder decision latency. We control cost and time via strict scoping, time‑boxing, and an evidence‑first plan that prioritises the riskiest assumptions. You’ll know what “done” means, how it’s measured, and what defers to MVP, enabling confident approvals and avoiding rework.

How does a PoC translate into an MVP and full delivery without losing momentum?

We plan the handover from day one. Validated architecture patterns form the baseline. Integration contracts and stubs turn into production adapters. Performance baselines guide non-functional requirements. UX prototypes help create the MVP backlog. Handover includes a structured transition pack with: Prioritised user storiesAcceptance criteriaTechnical recommendationsKnown risksDependency mappingEffort estimates by phaseWe propose a delivery cadence with decision gates and measurable outcomes; where appropriate, a limited pilot validates adoption and support needs. This continuity - from feasibility to product value, minimises rework and shortens the runway to MVP. Stakeholders receive demoable artefacts and documentation that support a clear go/no‑go decision and a de‑risked plan to scale.

What happens if the PoC shows the concept is not feasible?

A no-go is a legitimate and useful result, and the engagement is structured so it can surface honestly. The decision pack documents what was tested, what the evidence showed and why the recommendation is to stop or change course, so the conclusion can be defended internally without re-running the work. In practice the outcome is often a pivot rather than a flat stop: the business goal survives while a specific architecture, vendor or data source is ruled out, and a short follow-up spike tests the alternative. Either way, the time-box has done its job - the cost of the PoC bought the avoidance of a far larger build that the evidence says would have struggled.

What should we bring to the framing workshop?

Come with the business case as it currently stands, including the numbers it relies on - the workshop's job is to find the assumptions doing the most load-bearing work, and those usually hide in the financial model rather than the technical design. Bring the colleagues most doubtful about the idea - the architect who questions the integration, the operations lead who has watched a similar project fail - because their objections convert directly into the hypotheses most worth testing. Records of prior attempts are valuable too, whether an abandoned prototype or a vendor evaluation, since they tell us what has already been disproven. Finally, any hard constraints - regulatory obligations, vendor contracts, fixed launch dates - so the test is designed inside the world the project will actually live in.

Can our in-house team take part in the PoC?

Yes, and it usually strengthens the result. We regularly run PoCs alongside client engineering teams: your engineers bring system context and institutional knowledge, ours bring the validation discipline and an outside view that is not invested in any particular answer. The framing workshop is run jointly, so the hypotheses reflect what your team already suspects but has not had the space to test properly. During the build we work as one team, with shared standups and a shared board. The benefit shows at the end: because the evidence was produced together, the verdict carries weight internally and the knowledge needed to act on it already lives in-house.

Trusted by our clientsWhat teams say about working with us

This was a very task-heavy project, mostly exploration and R&D-driven. However, by the end of WislaCode, we were left with a detailed roadmap consisting of clear milestones - able to be converted into tangible KPIs - and some neat ideas of what actionable are next. Integrating...

Yurii Lozinskyi
Head of Applied AI Lab, Verysell Group

We collaborated with WislaCode on a route-to-market optimisation project. Working with WislaCode was effective, transparent and predictable, which is especially critical for AI and ML projects. We provided them with six months of anonymised data, and within just three weeks...

Julia Dvornikova
Co-Founder, Taal Healthtech

Working with WislaCode Solutions has been a great experience! We needed an Android SDK developed under a tight timeline, and their team delivered a flexible, user-friendly solution that integrated seamlessly into our ecosystem. Their transparent approach, proactive...

Loukas Charalampous
Solutions & Delivery Manager, payabl.
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Need a clear go or no-go answer?

Bring the riskiest assumption and we will design a proof of concept that settles it.