Draw the class diagram for these scenarios for entities it should have primary key. Scenario 1 A hotel caters mainly to company retreat groups, and wants to model this information to use in a management system.  A retreat group consists of a number of that company’s employees as hotel guests.  The system needs to track which room each guest stayed in, as well as which group the guest is part of. Scenario 2 A library wants to model information about its inventory, and which patrons have which books checked out.  The library can have multiple copies of a single title, and the model needs to indicate which copy of the title is checked out by a particular patron. Scenario 3 A doctor's office providing health services needs to track all of its patient visits.  The date of the visit, along with any diagnoses needs to be stored.  Keep in mind that a patient can have more than one diagnosis per visit, and that any particular diagnosis can be made to multiple

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Requirement Analysis

A process that determines the user expectations for a software product is called requirement analysis. In software engineering, requirement analysis is known as requirement engineering. It involves communication with end-users and stakeholders to determine whether the system or software requirements are validated, conflicts are solved, and key requirements are documented. The first activity of the Software Development Life Cycle (SDLC) is requirement analysis.