Before revision: While a designer can prescribe the exact configuration of a product, s/he cannot prescribe in the same way the result of the interaction between users and service providers, nor can s/he prescribe the form and characteristics of any emotional value produced by the service.
After revision: While a designer can prescribe the exact configuration of a product, they cannot prescribe in the same way the result of the interaction between users and service providers, nor can they prescribe the form and characteristics of any emotional value produced by the service.