Given the requirement listed below, please

• Create the Context DFD

• Create the System DFD

• Give a 5-minute presentation on your team's solution

Ocean Sound College Listing System

Ocean Sound College, a liberal arts college, provides dormitory housing for approximately half of its students. Students who choose not to live on campus, or who do not get assigned dormitory space, must find housing in the surrounding community. Currently, the housing office uses a cumbersome system of multiple binders to keep track of housing opportunities for students, faculty, and staff of the college. Housing listings are for college-owned housing, housing owned by private parties including landlords and individuals looking for roommates. The current system is difficult to maintain and keep up-to-date. The new college president approved a request to fund the development of a system to provide easier access and maintenance of listings.

The current listing system revolves around multiple copies of three binders of housing listings. These are separate binders for undergraduate listings, graduate listings, and faculty/staff listings. Within each binder are copies of listings available to a particular group. Listings either are generated by the college housing office from their own housing units, or from private landlords who call the housing office to list housing vacancies. In addition, students or other groups of people who have rooms available in a residence may list the rooms.

When the college rents a property, the listing is removed from all binders in which it appears. Private landlords are asked to call in when a property is rented to facilitate the removal of that listing from the binders. People using the binders who find housing listings that already have been rented are asked to report those so they can be removed. The binders are reviewed at the end of each month by the housing office staff, and private listings older than 2 months are removed.