Domain Driven Design has been known since 2013, but it’s still popular nowadays. So why is it still used while technologies are developing so fast and how can we use it with our software architectures? In this talk, Anastasiia will show you a real-world example of how to start with an idea of a feature/a new product/refactor/redesign, and develop it till you have a solid software architecture designed. In this talk attendees will learn about a real-world example: - how to start with Eventstorming to explore the user journey - how to move forward and explore the ecosystem of the product/software/feature/service - how to finalize a new architecture with C4 diagrams