After several in-depth talks about Event Sourcing, I realized that there's a large group of developers that may have heard about Domain-Driven Design, Command-Query Responsibility Segregation and Event Sourcing, but have not really connected the dots yet. So in this talk, I'd like to take a practical example of a simple domain and gradually introduce functional requirements to see how the principles behind DDD affect the way your entities are going to protect the business rules. After that, I'll introduce some real-world non-functional requirements and see if and how Event Sourcing and/or CQRS may or may not help to accomplish those.
Decoding Paradoxes: Why are many good ideas in Software Delivery counter-intuitive
How does deploying more frequently improve quality? How does slack time in a team improve reliability? Why should we do it more often if it hurts? These are counter-intuitive concepts that don't make sense at first, and you'll be met with a bewildered stare...