Evolution in Event Sourced Systems

Have you heard of Event Sourcing, but struggling to figure out how to apply it to real-world agile projects? Or maybe you are using Event Sourcing already, but wondering how you are going to live with that design-error you made at the start? Even if you have close to zero knowledge of Event Sourcing, this talk will have something for you.

Starting from a short introduction on what Event Sourcing is and how it changes the way you handle data and events in an application, this talk then continues to show you ways to facilitate change. From dealing with missing data in past events, to structural changes in aggregates and restructuring an event stream. The practical scenarios shown are inspired by close to 10 years of experience in building and maintaining Event Sourced applications with the Axon Framework.

The Case Against Frameworks

start.spring.io, ng init, AxonIQ Initializr... The ease of creating a new project is ever increasing. But at what cost? Frameworks give us a head start on any simple project, but they also bring baggage and opinions. This ignite talk is a highly opinionated call out to all developers to stay curious and stay practical.

Architecting a Sustainable Future

Sustainability is a lens through which the public has started scrutinising various industries. This lens is slowly increasing its focus on the field of IT. As software architects we are uniquely equipped to see this coming and be at the forefront of change.

During this talk, the audience is invited to test its knowledge on the energy usage of various common devices. This surprises most audiences and creates awareness about the need to collect data before we can effectively design new solutions.

Current efforts and organisations working towards greener IT are introduced and compared, as well as how anyone can join in these efforts.

At the end of this talk, the audience has been inspired to be critical about the way we design software systems and (cloud) infrastructures, invited to remain critical on decisions made in existing and new projects and they will leave with a hopeful sense of new possibilities.

Session duration is approximately 45-50 minutes.
Interaction with audience is done by a show-of-hands quiz.
Previously delivered at Rabobank Architecture Event.