In Chapter 7, you developed a use case diagram, a class diagram, and a system sequence diagram for the real estate company’s use cases. First develop a three-layer architectural solution, which allows agents and other clients to browse the database via the Internet. Internal updates should be done by screens within an internal network system. Also, based on those solutions or others provided by your teacher, convert the domain class diagram to a first cut design class diagram by type casting the attributes and adding navigation visibility. Next, using the use cases indicated by your teacher, develop a set of CRC cards for each one. Based on the class responsibilities identified on the CRC cards make up method names for the appropriate classes and add those methods to the DCD classes.