True$/$False Questions $($please circle T for true and F for False$)$:T $\backslash$ F $.$ One of the phases in the product design in which operations managers have to be included is market research.T $\backslash$ F $.$ The higher the customer participation in service processes, the more uncertainty a firm has with respect to service time and capacity.T $\backslash$ F $.$ Continuous flow processes are used to create custom goods and servicesT $\backslash$ F $.$ A small change in a firms targeted markets or strategic direction usually impact on itsvalue chainT$/$ F $.$ Sustainability has three sub categories: Economy, Energy and Social.T $/$ F$.$ Operations design choices are the decisions management must make as to what type of process structure is best suited to produce goods or create services.T$/$ F$.$ Variability is the ratio of the output of a process to the input.