Select a service business that involves interaction between customers and service providers, and create a PCN diagram similar to Figure. Pick a key step that could be per-formed either by the service provider or by the customers. Show process positioning options for the step. Describe how the options compare in terms of efficiency, economies of scale, and opportunity forcustomization.

Assemble sandwich Sandwich supplier Sandwich consumer Supplier's process domain Consumer's process domain Independent processing Surrogate interactioninteraction interaction nteraction Direct Direct Surrogate Independent processing Prepare sandwichesMake sandwich in restau- at factory for resale at convenience stores offerings with modest Custmer assemblesAssemble sandwich at sandwich from buffet home using ingredients offerings rant kitchen from menu from refrigerator modifications 5 Assemble custom sandwich at Subway as customer orders