Event Modeling

Storytelling enables humans to pass knowledge on to the next generations and relies on how we store memories. We can show, by example, what a system is supposed to do from start to finish, on a timeline, and with no branching. To do this, we need to draw a line…

Event-first thinking changes how you think about what you are building. Capture facts. Capture behavior. Provide a representation of the real world. Model use cases of how. Supports repeated evaluation and processing (a time machine). Provide horizontal scaling. Speak the same language as the business. The approach is unique in…

When you start modeling events, it forces you to think about the system’s behavior instead of its structure. Domain events represent the state in time of a business process. Customer interactions determine at a higher level what is essential to the business. Events are defined based on customer-facing interactions. The…

A domain event is anything that happens that is of interest to a domain expert. Domain events capture those facts in a way that doesn’t specify a particular implementation. They must learn, define, refine, and use it only in conversations about the model. Domain events are thus a more stable…

Events happen in a system — whether we store them or not that’s a choice. We begin by designing the screen that a user will see. The table representation is represented by a set of swim lanes corresponding to records — or rows. This allows us to see where data…

The way that we as humans share information is through Storytelling. Storytelling is how we share knowledge. We present different scenarios as part of a specific situation to distill the wisdom and what happened to us. Our organic ledger is our memory. …

Build information system automation as collaborative practice through Event Modeling. With Domain events, modeling is easy to identify where we are crossing a boundary between two different components. Boundaries across contexts are defined by the messages they send. When the boundaries around components are visible, assigning owners to each element…

When you start modeling events, it forces you to think about the system’s behavior. As opposed to thinking about the structure of the system. — Greg Young Storytelling enables humans to pass knowledge on to the next generations and relies on how we store memories. To do this, we need…

Standard development workflow requires re-opening the design of existing tables as we add new features to a system. Rework-driven approach increases cost more and more as the whole system grows. The scapegoat of modern approaches like SCRUM-Fall is a name given to doing too much planning, so we don’t get…