Choose the problem
Distinguish a feature request from the need it is trying to solve.
Product design · Gaspa BrusselsProduct design. The right problem. The right first product.
Gaspa helps turn an idea or existing product into a clear direction. We connect research, value proposition, priorities and design to decide what is worth building.
First 30-minute conversation · Free · No commitment
250
completed projects
4.96/5
Sortlist · 18 reviews
Products and brands designed to evolve.
Axiom, Cupigo and Al Por Tres illustrate our work on product journeys, interfaces and identity. Expertise brought together to shape your project.
Your starting pointBefore screens, decisions that matter.
Prioritise value
Compare uses, constraints and hypotheses before filling the roadmap.
Make the idea testable
Journeys and prototypes allow a proposition to be tested with relevant people.
Prepare the move to implementation
We connect product decisions to the journeys, components and behaviours the team needs to implement.
THE PROCESS AT A GLANCE
- 01
Choose
A priority problem and audience set the direction.
- 02
Explore
Journeys and prototypes test hypotheses.
- 03
Hand over
Approved decisions prepare a feasible release.
An approach tailored to your context.
From a broad idea to a clear first use.
Imagine a new service platform. Audience needs are compared with project objectives, a priority journey is prototyped and approved decisions prepare a coherent first release.
Product strategySearchUX/UIPrioritisation
Choose
A priority problem and audience set the direction.
Explore
Journeys and prototypes test hypotheses.
Hand over
Approved decisions prepare a feasible release.
Illustrative example · Product design This scenario does not describe a client project.
How we support youFrom the problem to solve to the product to build.
Each phase produces concrete deliverables. You see progress, understand the choices and approve the relevant points before moving forward.
Define the direction
01We clarify your audiences, objectives, context and uses to cover.
✓A shared brief to guide decisions.
A product direction
02The problem, audiences, value proposition and success criteria structured to support decisions.
✓A direction and criteria for prioritisation.
Journeys and prototypes
03Information architecture, key scenarios and interactive screens to test hypotheses.
✓Visible, testable hypotheses.
An implementation foundation
04Priorities, components, behaviours and documentation to prepare integration.
✓Decisions ready for handover to teams.
Validate uses
05Decisions are tested against the scenarios and media agreed with you.
✓Reasoned adjustments before handover.
Prepare the next phase
06Handover and discussions with your teams organise how the work is applied.
✓Usable deliverables and clear continuity.
Making the right choicesThe right level of design depends on the decision to make.
The choice depends on your audience, objectives and future uses. We make directions and their implications clear before applying them.
Explore a direction
01Interviews, journeys and lightweight prototypes help test a proposition that is still uncertain.
✓Learn before detailing every screen.
Prepare implementation
02Mockups, components and behaviours define a scope clear enough for development.
✓Hand over decisions that work together.
CollaborationFrom the brief to decisions ready for handover.
A shared framework, demonstrations and explained decisions. Your team knows the next steps, expected deliverables and points to approve.
An approachable team
You know who manages, designs and develops your product. The right people join the conversation at the right time.
Clear checkpoints
You see progress regularly and approve screens, priorities and releases before the next step.
Decisions explained
Before taking action, we explain the impact on your budget, timeline and the product’s ability to evolve.
Step(01)
Understand
The problem to solve, design direction and expected deliverables.
WHAT WE DO
Explore uses
Clarify positioning
Review existing materials
Identify friction points
Define decisions to make
A shared brief
Priority audiences
Design constraints
Hypotheses to verify
Acceptance criteria
People involved
Project leadershipProject managerProduct DesignerYou and your stakeholders
What you approve
The problem to solve, design direction and expected deliverables.
The right expertise, a team that knows you.
Specialists are brought in according to the project’s needs; this introduction does not imply a fixed project team.
01Guillaume
Founder and project director
Strategy, discovery and leadership
02Luca
Lead developer
Architecture and development
03Hugo
Lead developer
Development and quality
04Matteo
Project Manager
Coordination and visibility
05Chiara
Project manager
Coordination, communication and follow-up
Key decisionsWhat your team receives to move forward.
These decisions are reviewed with your team. They determine the possible uses, responsibilities and conditions for the next step.
A shared product direction
The problem, audiences, value proposition and success criteria structure trade-offs.
A prioritised scope
Essential journeys, hypotheses to test and topics to defer are made explicit.
A usable design foundation
Selected prototypes, mockups and rules are organised to prepare implementation with your teams.
Client reviews4.96/5 ★★★★★
Sortlist · 18 reviews · checked 13/10/2026
Collaboration described by the people who experience it.
Our clients share what matters during a project: a team that is available, responsive and committed.
Read client reviews on Sortlist
We greatly appreciated the team’s availability and responsiveness, as well as their sincere commitment to understanding the specific needs of golf and meeting our requirements as closely as possible.
Valentin Outters
Alba Golf
An excellent experience with Gaspa Agency! A big thank you to the team for their professionalism and efficiency. The application was delivered on time, with a real ability to adapt and, above all, constructive suggestions.
Reda Belyazid
ProtectU
We appreciated Guillaume’s availability and the way his colleagues listened to us throughout our project.
Jules Gerard
Cupigo
Start a projectLet’s give your next release a direction.
No specification needed. Tell us about your idea, your current tool or the problem you want to solve. We will help you work out the next steps.
Free first conversationNo commitmentConfidential enquiry
4.96/5★★★★★
Sortlist
250
completed projects
Shall we discuss your project?
Guillaume Gasparini 
Founder of Gaspa
Before suggesting a solution or a team, we take the time to understand your needs, constraints and project goals.
Schedule a meeting“The team’s availability and responsiveness.”
Valentin OuttersHead of Product — Alba Golf AI
Frequently asked questionsProduct design: answers to help you move forward.
Yes. It can help clarify a new direction, reduce complexity or prioritise improvements based on usage. The engagement then starts from the existing product’s data, feedback and constraints.