[Online] Starting a Domain: Practical Domain-Driven Design for Data Teams

​Continuing our DPM webinar series aimed at upskilling & knowledge-sharing, we're joined by Gaëlle Seret - Freelance data leader, former Head of Data Product & Enabling at Decathlon, and co-founder of Clean Data Architecture!

​Every organisation has a data definition problem. Product weight means one thing to the supply chain team, another to the designers, and something else entirely to the customer-facing team. The instinct is to create one enterprise model to rule them all. It rarely works.

​Gaëlle Seret has spent years helping companies like Decathlon and Pernod Ricard untangle exactly this — building domain maps that let teams work with shared understanding without forcing false consensus.

​What we'll unpack

• ​Why the "one definition for everyone" approach breaks down

• ​How to start a domain mapping exercise from a real business problem

• ​What the workshop artefacts actually look like at each stage

• ​How visual collaboration tools (like Obeya) keep alignment visible

• ​When domain-driven design matters even if you're not doing data mesh

​What you'll walk away with

• ​A practical process for running your first domain mapping session

• ​An understanding of when multiple definitions are a feature, not a bug

• ​Concrete examples of deliverables from real domain mapping projects

• ​Confidence to facilitate alignment conversations across business and data teams

​Perfect for: Data product managers, data leaders, governance practitioners, and anyone who's been asked to "just define what a customer is" for the whole company.

​Whether you're mid-transformation or just starting to think about domains, this session will give you a practical starting point — not another framework slide deck.

​About our speaker

​Gaëlle Seret is a freelance data leader and former Head of Data Product & Enabling at Decathlon. With 10 years of experience, she has led large-scale data and product transformations with a strong user-centric approach. She is the co-founder of Clean Data Architecture, a Substack publication on product craftsmanship and making data management accessible and meaningful.

​How to join

​This livestream will be held privately inside our new digital space!

​Make sure you've joined us on Circle - signing up takes 30 seconds and is free.

​About the Data & AI Product community

​Data and AI product management is still a young discipline, and there aren't many spaces dedicated to learning from peers.

​So we started this meetup in 2023 to change that! Since then, it's grown into a vibrant community with chapters in London, Barcelona, and Paris.

​Whether or not "product" is in your job title, if you're involved in shaping data, analytics, and AI initiatives (e.g. product managers, strategists, BAs, data scientists, engineers, analysts) you'll find like-minded people here.

​This is an informal, welcoming space to swap lessons, share challenges, and enjoy drinks and snacks along the way 😊

​You can meet us in person at our in-person meetups, but also join our global community where we have expert webinars, training courses, job postings, resources, and discussions.

​Quick FAQ

• ​Will this event be recorded? Yes, we will upload the recording here, along with previous DPM Community webinars

• ​If I sign up to this event, will I be opting into any marketing emails? No. We only use the Luma mailing list to invite you to upcoming community events and share community updates (like our end of year membership survey). You can always opt out of the Luma calendar.

• ​Can I mention this to a friend or colleague? Yes, of course! If they're based in London, send them this event. If they're not, it might be better to send them the LinkedIn Live link directly, so they don't get invited to all our in-person meetups too.

• ​Why are you doing this? Data & AI Product Management is a nascent field, and we created this community to bring together practitioners and help share our skills and experiences with those newer to DPM.