Community Board of Realtors One of the functions of the Board of Realtors intro- listing to the ML. 5 . Therefore, any agent in the comduced in Chapter 2 is to provide a Multiple Listing munity can get information on the listing. Service (MLS) system that supplies information that The MLS systems include lots of information on local real estate agents use to help. them sell trouses to a listing. It is now common to include dozens of photheir customers. Agents list houses for sale (listings) by tos, video tours, Google map information, prior sales, contracting with homeowners. The agent works for and so forth. For now, let's keep it simple and assume a real estate office, which sends information on the a listing includes the address, year built, square feet, number of bedrooms, number of bathrooms, owner through and write on. Sometimes, agents and owners namic, owner phone number, asking price, and status decide to change information about a listing, such as recode. An agent will directly request information from ducing the price, correcting previous information on the the MLS system on listings that match customer re- house, or indicating that the house is sold. The agent quirements. Information is provided on the house, on updates the information directly on the MLS system. the agent who listed the house, and on the real estate office for which the agent works. This information is. needed because 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. 1. To what events must the MI.S system respond based on the description above? List each event, the rype of event, and the resulting use case. Be Although it secms dated, once each week, the MLS sure to consider all the use cases that would be produces a listing booklet that contains information needed to maintain the data in the ML.S system. on all listings. These booklets are sent to some real es- 2. Draw a use case diagram based on the use cases tate afents beeause many think they are easicr to flip you identified in question 1. Include appropriate actors based on the case description. 1. Create an event decomposition chart. In this, list the TRIGGER EVENT, the USE CASE and the expected outcome. You can do this with MS Word or Excel. 2. Create a Use case diagram with Visual Paradigm. Show actors, system boundary, use cases and their associations. Ensure it have your name and date in the diagram
