Create a set of use cases for a housing system. The system helps students find apartments. Owners of apartments fill in information forms about the rental units they have available(location, number of bedrooms, monthly rent). Students can enter into the system the find apartments that meet their needs(number of bedroom, cost of rent, distance). They then contact the apartment owners directly to see the apartment and possibly rent it. Apartment owners enter the system to delete their listing when they have rented their apartment(s).