Event Storming

An example process from an event storming Event storming is a workshop-based method to quickly find out what is happening in the domain of a software program. Comparing to other methods it is extremely lightweight and requires intentionally no support by a computer. The result is expressed in sticky notes on a wide wall. wikipedia

See Introducing Event Storming. post book

See the method explain itself in Event Storming for Fun and Profit by Dan North. slides video