This is a triumph of careful planning to ensure reliable identificiation the precise type of coffee in any scenario. However, I don't think I have ever seen any of them used anywhere I have been. Usually places have max. 2 machines, with max. 2 people per machine meaning that information flow is rapid and informal, and that queuing up of unknown made drinks is relatively unlikely. It could be used before that stage, to queue orders to be made with the till guy prepping the cups as they normally process faster than the barista. However, this is suboptimal as it is easier to read an order off a printout and communicate exceptions verbally.
I wonder if the designers of this beautiful process sit high above Seattle or whereever, happy that they have saved the world from accidentally getting the wrong coffee and never seeing how 'effective' their needlessly complex process design is because their coffee arrives with all the notations, but just put on afterwards by a PA.
| < Did I mention that we got the house? | Twenty-one bucks > |

