• Event storming is valuable for breaking down monolithic applications into microservices by identifying independent functions within a domain. This is achieved by analyzing communication patterns and identifying "bounded contexts" where specific sets of terms and concepts are used consistently. These bounded contexts often correspond to potential microservices.
• The concept of "ubiquitous language" is central to event storming and domain-driven design. It emphasizes the importance of using standardized terminology within each team to avoid ambiguity and ensure everyone is on the same page.
• Event storming sessions utilize a visual and collaborative approach with sticky notes to represent different elements of a system. This includes domain events (orange), commands (blue), actors (yellow), business policies (purple), external systems (pink), read models or view models (green), and aggregates (pale yellow).
• The "Serverless Espresso" use case provides a practical example of how event storming can be applied. By analyzing the steps involved in ordering and fulfilling coffee orders, participants can identify domain events, commands, actors, business policies, and external systems.
• The source highlights the importance of considering constraints and edge cases in event storming. For example, in the Serverless Espresso case, it's important to consider issues like order capacity, queue management, and validation checks to prevent users from placing multiple orders.