Low low high high interest influencepower question 5

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Low Low High High Interest Influence/Power
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Question 5 (10 marks) a. Requirements gathering are critical in learning users and stakeholder’s requirements of their future system. Discuss three fact-finding techniques. (5 marks) b. Carefully examine the interface shown in figure below and describe three metaphors of Human- Computer Interaction that can be seen in this interface. (5 marks) Question 6 (10 marks) The Real Estate Multiple Listing Service 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 (listings) by contracting with homeowners. The agent works for a real estate office and sends information to add a listing to the Multiple Listing Service Systems (MLSS) clerk. The clerk upon receiving the request verifies the existence of the agent, and when the agent is found valid, would then add the listing to the Listing database maintained via the MLSS system. 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 MLSS clerk 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 MLSS clerk to ask additional questions or call the homeowner directly to make an appointment to show the house. Twice each month (on the 15th and 30th), the MLSS produces a listing book that contains information on all listings. These books are sent to all of the real estate agents. Many real estate agents however prefer a printed version of the books (which are easier to flip through). Hence, MLSS clerk sends those printed books to the real estate offices even though the information contained in those printed books may sometimes be out of date. Sometimes agents and owners decide to change information about a listing, such as reducing the price, correcting previous information on the house, or indicating that the house is sold. The agents (on behalf of the real estate office) send in these change requests to the MLSS clerk. a. Develop a domain model class diagram for the Real Estate Multiple Listing Service System case study. The model should include all relevant domain classes, and show their attributes, relationships and relationship multiplicities. (5 marks) b. Draw a use case diagram for the Real Estate Multiple Listing Service System study. Make sure you include a use case called “Add a listing”. (5 marks
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