Consider a system that does not yet exist. An example is a totally automated fast-food restaurant, where customers order via touch screen interactions, pay by swiping their debit or credit cards, and then pick up their food—analogous to the self-check-out at some supermarkets, but even more extreme. Discuss how you conduct a contextual inquiry for a system that does not yet exist.

What will be an ideal response?

Recall the definition of a contextual inquiry: Plan for, prepare, and then conduct field interviews to observe and understand the work tasks being performed. Review business practices. However, note the system does not yet exist! So, you will need a prototype or even a series of sketches with a scenario, to talk potential users through your vision of what the system will do and how it will perform. Then, you capture the observations much like that of an existing system, formulating results and trending responses.