Pizzaville

An ordering system for a food fair: tills, kitchen screens, pickup boards, printers and a phone app for customers. When the internet went down, the selling didn't stop.

orders in four nights
9k+
from the customer web app
4.8k+
nights
4
downtime
0
Fig. 1The fair keeps selling with the cable unplugged.
The fair's system: phone app in the cloud, tunnel, fair server, tills, kitchens, pickup boards and a printer. Switch parts off below to see what still works.phone appcloudtunnelfair serverall the truthtillskitchenspickup boardsprinter A● TAKING ORDERS● SELLING● LIVE● LIVE● PRINTING ON Athe cloud is never askedThe fair's system: phone app in the cloud, tunnel, fair server, tills, kitchens, pickup boards and a printer. Switch parts off below to see what still works.phone appcloudtunnelfair serverall the truthtillskitchenspickup boardsprinter A● TAKING ORDERS● SELLING● LIVE● LIVE● PRINTING ON Athe cloud isnever asked

Everything is on. Switch a part off.

Fig. 2One order, from phone to plate.
phonecloudfairkitchenpickup"ready" back to the phonephonecloudfairkitchenpickup"ready" back to the phone
Fig. 3"Unknown" is a real answer.
  • UnknownNo number given. Retrying is safe.
  • Not paidNothing was created.

Got a process that can't afford to fail, or a system that has outgrown its first version?

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