From Sticky Notes to Strategic Boundaries: Real-World EventStorming at the Port of Rotterdam

This talk shares practical lessons from using EventStorming to modernize architecture in the Port of Rotterdam. Attendees will learn real-world approaches, successes, pitfalls, and how EventStorming clarified domains and boundaries, guiding both software architecture and team structure in a complex, mission-critical environment.

Mario KlaverPort of Rotterdam

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Wednesday, October 8, 13:05-13:45

Room 10

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EventStorming is more than just a colorful workshop — it’s a powerful way to uncover domain knowledge, align teams, and design better software. In this talk, we’ll share how we used EventStorming during our architecture modernization traject in a complex, mission-critical environment at the Port of Rotterdam to identify domains, subdomains, and meaningful boundaries.
You’ll learn:

How we approached EventStorming in a real, operational setting
What worked well — and what didn’t
Common pitfalls and how to avoid them
How EventStorming helped guide both architecture and team structure

Whether you're new to EventStorming or looking to make it work in practice, this session offers hands-on insights and hard-won lessons from the field.

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architecture

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Mario Klaver

Port of Rotterdam

Netherlands

Mario Klaver is a Solution Architect at the Port of Rotterdam, where he is responsible for the digital systems supporting Harbour Master operations. With a background in Java and Kotlin development, he focuses on building clean, modular software architectures for mission-critical environments. Combining hands-on engineering experience with a pragmatic approach to architecture, Mario Klaver helps teams design systems that are scalable, understandable, and built to last — even under 24/7 operational demands.

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From Sticky Notes to Strategic Boundaries: Real-World EventStorming at the Port of Rotterdam infographic

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