If we are not careful as an event driven architecture matures it can evolve into something resembling the well documented ‘big ball of mud’.

This talk will look at how my team has been transforming a production EDA. It will show how a sparsely documented set of AWS SNS topics used to publish and consume cross-domain events have been transformed into an architecture exhibiting discoverability, governance and observability while continuing to run in production without any data loss.