eer/er design modeling

City mall is requesting that you build them a system that maintains information about their store fronts their availability for rent (rented or empty), in addition to information that allows the management to assess the right price to rent any store front at a point in time. The system needs to maintain information about each store front and where it is located, (what floor, visible or hidden part of the floor), its space, rented or empty, rental fee, when it was rented, and when the contract ends and what business occupies it. The system needs to keep track of foot traffic in each floor and needs to assign a visibility value for each store front. It needs to maintain a total of sales that each store front received in the last year if it was occupied. And the sales for the last year it was occupied for empty store fronts. You need to maintain information about the type of retail businesses that that exist in the Jordanian market in general (clothing, supermarket, services, banking....etc) and each store front needs to maintain information about the types of businesses that are on each side of it