Modeling technique coined by Adam Dymitruk in 2018 at the EventStorming Summit, originally called 'single flow event storming'. Draws business processes like frames in a movie on a board, using a limited vocabulary: commands (blue stickies — intents to change state), events (orange stickies — business facts, with who/what/where/when properties), views/read models (green stickies — what the user sees) and automations (robots listening for events and dispatching commands between modules). Avoids technical terms like policies or aggregates. Events form the contract between slices. Includes a completeness check — for every field in an event or view, verify where it first appeared — with Miro board extensions that automate it. Mateusz Nowak prefers it over process-level and design-level EventStorming and uses it to organize work into parallel vertical slices (write/read/automation).