HOW I MODELLED THE SYSTEM
The till does not talk to five apps. It writes one event.
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SOURCE
Point of sale
Till 2 · offline-tolerant · writes the order once and owns nothing else.
DELIBERATELY NOT BUILT
No till-to-till sync. Two tills reconcile through the event log, not each other.
ORDER EVENT
{{ v.name }}
{{ v.role }}
CONSUMES
{{ v.consumes }}
EMITS
{{ v.emits }}
EVENT LOG
{{ l.t }}
{{ l.body }}