Homeโ€บAI workshopโ€บAI design sprint
Validation sprint ยท Pre-investment AI concept

AI design sprint.

A short, intensive validation session for product teams considering AI but still unsure whether the problem genuinely lends itself to it. From problem framing through use-case shortlisting and model selection to a clickable prototype that we test with real users, including technical feasibility, data reality and AI Act classification. The end of the sprint is a substantiated go/no-go, not yet another Miro board.

FormatConcentrated sprint
Target groupProduct & management teams
OutputGo/no-go + prototype
ValidationReal users
VendorsIndependent
LocationAt your office + remote

What is an AI design sprint?

An AI design sprint is a concentrated validation session in which we work with your product and business team to put an AI idea through, in a short time, all the questions that would normally only be asked after an investment. We work in a hybrid of the classic Design Sprint format from Google Ventures (Jake Knapp) and an AI feasibility check: problem framing, user insight, sketching, prototype and testing along one clear line, with technical feasibility, model choice and compliance built into every phase.

A standard Design Sprint asks questions such as "do users actually want this" and "does this flow work". An AI design sprint does that too, but adds three questions that are decisive for AI concepts. One: is the problem suitable for AI at all, or are you in fact looking at an if/else rule that is being made smarter through automation rather than a model. Two: which approach fits, an LLM, classical machine learning, vector search or a combined pattern. And three: is the data reality in order, does the data you need exist, is it accessible, and is it of a quality with which a model can genuinely work.

The sprint is therefore the bridge between a broader AI business training (in which your team learns what AI is and where it can land) and a full AI implementation project (in which we put a validated concept into production). Training opens up thinking, a project delivers; a sprint chooses. Whoever jumps from training straight to a project without a sprint commits budget to a use case that later gets stuck on a data assumption that did not hold or a regulatory question nobody asked.

For those who don't yet have a clear view on the broader question of "which AI direction should we strategically pursue", an AI consultant engagement is often a more logical first step. The sprint itself assumes you already have one concrete candidate use case on the table โ€” not "something with AI somewhere", but a specific problem where you suspect an AI solution might fit. Only then is the sprint efficient.

Hybrid
Compact design sprint plus AI feasibility check in one format
5 phases
Frame, map, choose, prototype, test โ€” each with an AI layer on top
Go/no-go
A reasoned decision point at the end, not yet another Miro board
Pre-investment
Validation before budget, governance and build

When does an AI design sprint make sense?

A sprint is worthwhile if you have a concrete candidate use case but are still uncertain about one or more of the typical pitfalls. A few patterns we see often.

01
Problem fit

You're unsure whether the problem suits AI

You have a process that is slow, error-prone or disproportionately manual, and your team is thinking about AI. Before investing, you want to know whether a model would genuinely add value โ€” or whether you actually need a process redesign, a rules-based system or a better search function. Not everything that is tedious is an AI job.

02
Approach choice

You don't know whether you need an LLM, ML or search

An LLM is tempting because it seems capable of everything. Classical machine learning is often cheaper and more stable where recurring patterns appear. Vector search solves a specific class of problems elegantly. During the sprint we map out the right approach based on your data, latency requirements and cost model.

03
Data reality

The data assumptions are unproven

On paper, your organisation has the data you need. In practice, it is spread across five systems, inconsistently structured, or simply lacks the signal the model requires. The sprint raises this question on day three rather than on day eighty of an implementation.

04
Compliance and the AI Act

You don't know which risk profile you fall under

Since the AI Act came into force, every use case falls into one of the risk categories (prohibited, high, limited, minimal). The classification directly determines how much work surrounds it. In a sprint you get a provisional classification on the table, along with a picture of what the Article 9โ€“15 requirements would mean for your specific case.

05
Stakeholder alignment

Management and the team talk past each other

Management wants "something with AI"; the team doesn't know what outcome is expected; IT wonders where this lands in the architecture. A sprint forces everyone into the same room to make the same assumptions explicit โ€” with a validated prototype as a shared reference.

06
Pre-investment gate

You don't want to release budget without evidence

An AI implementation is a serious investment. A sprint is your gate moment: you decide on the basis of evidence (users, prototype, technical check) whether to proceed to an implementation project. Both outcomes are valuable.

Three principles that set the sprint apart.

From the outside, an AI design sprint at Appfront looks like a design sprint โ€” five phases, structured days, a prototype at the end. Under the bonnet, three choices differ from a classic Knapp sprint.

Principle 01

Feasibility runs alongside, not after

In a standard design sprint you mainly test desirability: do users want this? With us, technical feasibility runs alongside from day one. Which model, which data, which latency, which cost per inference. A prototype that is desirable but technically unfeasible is still a no-go โ€” and it's better to hear that on day five than in month three.

Principle 02

Compliance is not an afterthought

The AI Act classification is provisionally set on day one and sharpened on day four as the use case takes concrete shape. A high-risk classification directly changes the scope: different requirements for documentation, logging, human oversight and robustness. We factor that into the go/no-go decision โ€” not as a closing item, but as a variable.

Principle 03

We build the prototype for real โ€” not in slides

The sprint prototype is not a clickable Figma mock. We build a working prototype with a real AI API behind it (Anthropic Claude, OpenAI or open-source), a UI mock in Streamlit or v0, and a minimal flow in which users actually receive answers. That changes what you learn from the user test.

How the sprint is structured.

Five phases at the heart of the Knapp format, with an AI layer in each phase. We work in a focused block rather than scattered working groups, so the whole team tackles the same pieces at the same pace.

01

Problem framing and long-term goal

We open with the classic Knapp question: what is the problem, and what would success look like over a longer horizon. For AI concepts we add two sharper questions. First: who exactly is the user of the AI system: the end customer, the employee, or an agent in another system? Second: which decision or action does the system change, and how would you measure whether that decision becomes better, faster or more consistent?

Sprint questionLong-term goalDecision metric
02

Mapping: use-case shortlist

We map the end-to-end process into which the AI system must fit, and identify exactly where the model comes in. We then draw up a short list of possible AI approaches for that specific point: an LLM with or without RAG, classical ML, embedding search, rule-based, or hybrid. Often two candidates remain, which are weighed against each other in phase 03.

Process mapUse-case shortlistApproach options
03

Choose: model, data, AI Act

The choose phase combines three trade-offs. We choose the model pattern (which type of AI and which specific model family), we test the data reality (do we have it, at what quality, and under what processing conditions), and we record the AI Act classification (prohibited, high, limited or minimal risk). Together these three set the direction for the prototype. Undiscovered data defects or an unexpected high-risk classification surface here, not only during implementation.

Model choiceData checkAI Act classificationCost & latency
04

Prototype: small, working, real

We build a functional prototype that a user can genuinely use. For LLM use cases we connect to Anthropic Claude or OpenAI via the API; for specialised use cases we work with a suitable model. We build the UI quickly in Streamlit, v0 or a similar layer; integration flows in n8n or Make. The aim is not polish but realism: a real prompt, real data, a real model response and a UI that gives users enough context.

Anthropic / OpenAIStreamlit / v0n8n / MakeWorking flow
05

Testing with real users

A handful of real users, be they your customers, your employees or the stakeholders who will work with the system, go through the prototype in a structured session. We record desirability (do they find it valuable), usability (can they work with it) and trust (do they believe the output) separately. For AI systems, trust is often the real bottleneck: not whether it works, but whether people dare to trust it.

5โ€“6 usersStructured testDesirability ยท usability ยท trust
06

Synthesis: go/no-go and feasibility report

After the tests we hold the findings against the three sprint dimensions (desirable, technically feasible, compliant) and formulate a reasoned go/no-go. On a go: a follow-on proposal with phasing, vendor and architecture direction, and an initial investment estimate. On a no-go: an honest overview of what the blocker is. No obligation to proceed from the sprint.

Decision documentFeasibility reportAI Act noteFollow-on plan

The stack we work with during the sprint.

A sprint needs to be fast โ€” not six weeks waiting for a dev team to put together a mock-up. The toolstack is optimised for speed, with the option of a clean transition to production architecture once you give the go-ahead.

Model layer

Frontier APIs with fallback

For most sprint prototypes we work with the Anthropic Claude API or OpenAI. Where the use case calls for it, we also consider Google Gemini, Mistral or an open-source route. That way the concept doesn't depend on a single vendor.

  • Anthropic Claude โ€” strong instruction-following, long context
  • OpenAI โ€” broad tool coverage, rapid iteration
  • Open-source โ€” where on-premises or data residency is required
UI layer

Quick mock-up for real testing

A sprint prototype doesn't need to be polished, but it does need to feel real. We build UIs in Streamlit (quick Python prototyping), v0 (Next components in minutes) or a lightweight custom app built on existing UI libraries. The goal is a mock-up that doesn't get in the way of user testing.

  • Streamlit โ€” Python prototype UI in hours
  • v0 / Vercel โ€” polished front-end mock-up where that helps
  • Native mock-up โ€” when the use case needs to land on mobile or in-app
Flow layer

Integrations without a full dev team

Many AI use cases depend on what happens on the periphery: fetching data, placing output somewhere, sending a notification. We build those flows quickly in n8n or Make, so we can test the complete pattern without a production integration. Once you give the go-ahead, we translate the flow into the right architecture.

  • n8n โ€” open-source flows, can be run on-premises
  • Make โ€” SaaS integrations connected quickly
  • Custom Python โ€” where specific logic requires more flexibility

What sets an Appfront sprint apart.

For AI concepts, it is crucial that the sprint is led by people who actually build AI systems โ€” not by agency strategists who only know the model from slides.

Difference

Builders rather than facilitators

The sprint is led by people who have worked on a production AI system this very week. The prototype follows the same code style and architectural choices as a real project โ€” not throwaway work, but a focused first version.

Difference

Vendor-independent

No reseller deal with Anthropic, OpenAI, Microsoft or Google. We choose the model that suits your use case, and we will honestly tell you when open-source is a better choice than a frontier API.

Difference

Compliance built in, not bolted on

The AI Act runs as an overlay across the entire sprint, not as a separate paragraph in the report. For clients with sector-specific regulation (healthcare, financial, public sector), we bring in a compliance specialist where needed.

Difference

Custom from the idea stage

There is no standard curriculum. We shape the plan from a short pre-sprint call: the nature of the problem, the sector, data and systems, stakeholders. The five phases remain; how each phase is filled in varies per assignment.

What you receive at the end?

The sprint delivers a set of tangible outcomes that together form a package you can use for the decision moment โ€” for your team, your management board, your board of directors.

  • Validated concept with a substantiated go/no-goA clear verdict โ€” based on desirability, technical feasibility and compliance โ€” on whether this AI idea deserves the next investment.
  • Clickable working prototypeA functional prototype with a real AI API behind it and a UI mock-up. Available in a shared environment so you can keep using it to explain it to stakeholders.
  • Technical feasibility reportRecommended approach (LLM, ML, vector search, hybrid), model choice with a fallback option, an indication of latency and cost model, and critical architectural considerations.
  • AI Act classification memoProvisional classification (prohibited, high, limited, minimal risk), the Art. 9โ€“15 implications for high-risk systems, and the link with GDPR, DPIA necessity and DORA where relevant.
  • Data requirements overviewWhat data the system needs in production, which sources hold that data, and what quality and structural changes are required before implementation can begin.
  • User insights from testingWhat worked, where users got stuck, and which trust and transparency requirements apply additionally to your target audience.
  • Follow-up plan (optional)If the decision is go, a plan for the implementation project or a broader enterprise AI implementation. If the decision is no-go: clear conditions under which it would become feasible.

How we factor the AI Act into the sprint.

The EU AI Act changes what an AI pilot may do, and what it must do in production. A sprint that ignores the Act delivers a prototype that is legally unusable. We take the Act into account from phase one, not as a barrier but as a design constraint.

In phase 01 we draw up a provisional risk classification based on the problem framing. In phase 03, when the model pattern and data become concrete, we sharpen that classification, because the precise shape of a use case can tip between limited and high risk. For a high-risk classification the scope shifts: articles 9 to 15 require a risk management system, data governance, technical documentation, logging, transparency towards users, human oversight and robustness, and we factor those requirements directly into the feasibility assessment.

We also work out the link with the GDPR, the need for a DPIA and, for financial institutions, DORA. For sector-specific regimes (NEN 7510 in healthcare, the assessment framework for public bodies), we bring in the relevant references. The report includes a section you can pass directly to your legal or compliance officer; for a deeper treatment, this ties into our AI development approach.

What the sprint does not do is produce a formal DPIA or audit report: that belongs to implementation, not validation. What it does do is prevent you from building on an assumption that, legally speaking, already ruled out the application in that form. A lot of wasted effort sits in the gap between "we heard it was allowed" and "it should have been built the way the Act prescribes".

How a sprint typically runs: three scenarios.

Scenario ยท Document AI

Smart case-file research for professionals

A team wants an internal assistant that helps lawyers or consultants work through large case files. Sprint question: can an LLM with RAG solve this, or is targeted hybrid retrieval a better route? Output: a prototype on one sample case file, tested with three professionals, with sharp conclusions on hallucination risk and source attribution.

Scenario ยท Customer interaction

AI-triaged incoming customer enquiries

A service organisation is considering first-line triage by an AI agent. Sprint question: is this a chatbot problem, a classification problem, or a human-in-the-loop problem? Output: a prototype that routes 50 real enquiries, with an evaluation of precision, frustration risk and escalation path, plus an AI Act classification for this category of use case.

Scenario ยท Operational decision

AI-supported pricing or scheduling advice

An operator is considering a model to support daily decisions such as scheduling, pricing or allocation. Sprint question: is this an ML model or an LLM application? Output: a prototype on historical data, tested with the people who make the decision today, and a clear distinction between "advice" and "automation".

Fabian van Dijk Business Developer ยท Appfront

Frequently asked questions.

What is the difference from an AI workshop?
An AI workshop or company training is broader and focused on building knowledge: what AI is, where it can land, which models, which compliance requirements. An AI design sprint is narrower and focused on one concrete candidate use case: should this specific idea receive investment or not. A workshop leaves all doors open; a sprint chooses one door and checks whether there is anything real behind it.
And what's the difference with an implementation project?
An AI implementation project is about execution: taking a validated concept into production, with governance, change management and handover. A sprint is about validation: should this concept be implemented at all? Many clients treat the sprint as a decision gate before the project, and only direct budget towards implementation once the sprint has delivered a go. If you already have a validated concept, skipping the sprint can make sense.
When is a sprint actually not useful?
If you don't yet have a concrete candidate use case (in which case a broader training programme or AI consultancy advice is the more logical choice). If the idea has already been validated. If the real question is a strategic one at portfolio level. And if the organisation doesn't yet have sufficient data access to feed a prototype.
How do you handle the EU AI Act during the sprint?
On day one we make a provisional risk classification, and on day three or four a sharpened version. For high-risk applications, we work out the Art. 9 to 15 implications, not as legal advice but as a design constraint. We link to the GDPR and DPIA necessity and, for financial institutions, to DORA. The sprint does not replace a formal DPIA or audit; that belongs to implementation. But it prevents you from building on an assumption that is already legally excluded.
Do you work with our existing data and systems?
Preferably, yes โ€” a prototype built on a fictional dataset yields limited insight. For most sprints we work under NDA with a representative sample of your own data or a controlled extract. We work in your cloud tenant where the classification of the data requires it; for sprint purposes it may also take place in a protected environment on our side, depending on what the GDPR and your security team permit.
Which models and vendors do you use?
For most sprint prototypes we work with Anthropic Claude or OpenAI. Where the use case requires it, we consider Google Gemini, Mistral, or an open-source route (Llama, Qwen). We build UI mock-ups in Streamlit or v0, and integration flows in n8n or Make. We are vendor-independent: no reseller deal, no mandatory integration.
What if the sprint delivers a no-go?
That is a legitimate outcome, not a failure. You have clearly learned that this particular idea is not the right next step. The final report states clearly where the blocker lay (data, model fit, user signal or compliance) and which adjustments would make it feasible in a possible second sprint. Both forms of clarity are worth more than a half-hearted go.
How does the transition from sprint to implementation work?
If the decision is a go, we immediately deliver a follow-on outline: phasing, scope, technical model recommendations, governance considerations and an initial indication of investment. This fits seamlessly with our AI implementation project or, for larger organisations, an enterprise AI implementation. You are under no obligation to take that project with us โ€” we will also give you honest advice if another type of partner is a better fit.
Is this suitable for enterprises or for scale-ups?
Both. For scale-ups it is often the first pre-investment decision gate for an AI feature on the roadmap. For enterprises it is a structured way to get clarity on one of several parallel AI initiatives before it lands in the broader governance layer โ€” a workstream we also build in structurally on larger enterprise AI implementations.
How much does a sprint cost?
That depends on the nature of the use case, the complexity of your data context, the number of stakeholders and how much pre-sprint preparation is needed. We work with a fixed sprint price, which we provide after the intake โ€” transparently broken down by phase. A sprint costs less than a wrongly directed implementation; that is the entire economic logic of this format.

Talk to us about your AI design sprint.

A half-hour introductory call in which we go through the candidate use cases you have in mind, the uncertainties around problem fit, approach, data or compliance, and how a sprint can give the sharpest answer to them. No obligation. Afterwards we send you an outline with phasing and transparent pricing.

Response within 1 working day
No-obligation conversation
Westerdoksdijk 599, Amsterdam
Share this article: LinkedIn Email

Edit content