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The Real Estate Multiple Listing Service (MLS) system supplies information that local real e




The Real Estate Multiple Listing Service (MLS) system supplies information that local real estate agents use to help them sell houses to their customers. During the month, agents list houses for sale (listings0 by contracting with homeowners. The agent works for a real estate office which sends information on the listing to the MLS. Therefore, any agent in the community can get information on the listing.;Information on a listing includes the address, year built, square feet, number of bedrooms, number of bathrooms, owner name, owner phone number, asking price, and status code. At any time during the month, an agent might directly request information on listings that match customer requirements, so the agent contacts the MLS with the request. Information is provided on the house, on the agent who listed the house and on the real estate office for which the agent works. For example, an agent might want to call the listing agent to ask additional questions or call the homeowner directly to make an appointment to show the house. Twice each month on the 15 th and 30 th, the MLS produces a listing book that contains information on all listings. These books are sent to all the real estate agents. Many real estate agents want the books (which are easier to flip through), so they are provided even though the information is often out of date. Sometimes agents and owners decide to change the information about the listing such as reducing the price, correcting previous information on the house or indicating the house is sold. The real estate office sends in these change requests to the MLS when the agent asks the office to do so.;1. To what events must the MLS system respond? Create a complete event table listing the event, trigger, source, use case, response and destination for each event.;2. Draw a use case diagram showing actors and their interaction with the system.;3. Draw a domain model class diagram that shows that different types of listings have different attributes. The descriptions in the use case assume all listings are for single family houses.;4. Create a fully developed use case description or an activity diagram for each use case.;5. Develop a system sequence diagram for each use case.


Paper#65487 | Written in 18-Jul-2015

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