design level event storming

• command
• aggregate
• domain event
• external system
• read model
• user
• policy/invariant

graph TD
command --> policy
command --> aggregate
policy --> aggregate
aggregate --> event

shows which commands generate which events when event storming

graph LR
read[read model]
one[event] --> read
two[event] --> read
three[event] --> read

if doing event sourcing, show which domain events go into the read models

graph LR
read[read model]
read --> user
user --> command

how a user is informed to execute a command