EVENT-STORMING

Domain events stickies DDD workshop.

Definition

Event Storming uses fixed-colour stickies: orange (domain event), blue (command), yellow (actor), purple (policy), pink (external system), green (read model). Three levels: Big Picture (high-level), Process Modelling (workflow), Design Level (aggregates). Ideal to discover bounded contexts and seams for microservices.

Origin

Invented by Alberto Brandolini at Avanscoperta in 2013 ; Introducing EventStorming book in 2018.

Example in context

An ING team facilitates a 2-day Event Storming to discover the bounded contexts of their Open Banking process.

Related terms

• DDD — theoretical framework.