Mini-Project Activity and Use-case Diagram (12 Marks) Q3.R3. Create a use-case diagram and a set of activity diagrams for the following system. A Real Estate Inc. (AREI) sells houses. People who want to sell their houses sign a contract with AREI and provide information on their house. This information is kept in a database by AREI, and a subset of this information is sent to the citywide multiple-listing service used by all real estate agents. AREI works with two types of potential buyers. Some buyers have an interest in one specific house. In this case, AREI prints information from its database, which the real estate agent uses to help show the house to the buyer (a process beyond the scope of the system to be modeled). Other buyers seek AREI's advice in finding a house that meets their needs. In this case, the buyer completes a buyer information form that is entered into a buyer database, and AREI real estate agents use its information to search AREI's database and the multiple-listing service for houses that meet their needs. The results of these searches are printed and used to help the real estate agent showe houses to the buyer. Note: use the online diagram editor to draw the diagrams. Business Situation Sequence Diagram (10 Marks) Q4.R1. Create a sequence diagram for the upcoming scenario descriptions for a video store system. A Video Store (AVS) runs a series of fairly standard video stores. Every customer must have a valid AVS customer card in order to rent a video. Customers rent videos for three days at a time. Every time a customer rents a video, the system must ensure that the customer does not have any overdue videos. If so, the overdue videos must be returned and an overdue fee paid before customer can rent more videos. Note: use the online diagram editor to draw the diagrams