Question

Please note: • This is an assignment about Entity Relationship modeling. It’s not about creating database using DBMS. The output of this modeling usually shows diagrams and descriptions. • Please use any diagram notations that the textbook ever used. You may use generic drawing tools in office applications, or diagram/flow-chart tool such as MS-Visio to produce ER diagrams. • Please provide appropriate attributes that satisfy the information requirements to all entities and relationships. • Late assignments will be graded down 10% per day late. • This is an individual assignment of a DESIGN problem. You may discuss with others to come up with ideas, but not collaborate to complete the work. Students submitting similar works may both/all receive 0s grade and face possible disciplinary actions. • Grading is based on (1) completeness, (2)proper notation, (3) correct modeling logic. • All information requirements need to be fully satisfied. Although you may make assumptions, DO NOT trivialize the design requirement. • If you have questions, email your instructor: [email protected].

Questions: 1. The HR office at a college maintains a faculty database. The office records the name, social security number, rank, and salary of every professor. Each professor belongs to one department, considered as his main affiliation, but may belong to others as well. The office keeps track of all these affiliations. The office needs to know the names, room number, and phone number of each department (office). Every department has a single chair-person (who is also a professor). whereas a department chair, as a professor, may belong to several departments, he/she can be a chairman of only one of them. (10 points) 2. The parking office at a college maintains a parking-garage database. The college employees are allowed to park in the garage only their own cars. The office records the name, social security number, and a contact phone number of every person that is entitled to use the garage. The office stores the following information about every car to which a parking permit is issued: license plate number, manufacturer, model, and color. The office needs to know the owner of each such car, as well as the date that the car was purchased by the owner.(10 points) 3. Ollivander Wand Laboratory has been the leader in the wand making business for several millenia. As is known, a wand is the most important piece of equipment for a wizard who 1 wishes to do magic. The Lab has a large database, recording important data about every single wand made over many centuries. The lab preserves the most trusted personal records of the entire wizarding community. Each wizard (or witch) is identified by NeRD (Never Repeated Distinct) identifier, composed of letters from the standard magic alphabet. The Ollivander database archives the name of the wizard, as well as the date and place of birth. Furthermore, the father and mother (both are wizards) are recorded for every individual. Ollivander lab stores data about all shcools of wizardry in the world. Along with the name of each school, the database keeps track of its location, education level, current number of students and the name of the current principal. For each wizard in the world, Ollivander Lab notes the number of their license to use wand and the data it was issued. The license is always issued by a school, and signed by two witnesses The wizards (witches) who signed the authorization and the school that issued it are noted in the database as well.(20 points)

Answer 1

As per HOMEWORKLIB RULES we can only solve 1st question. Thanks

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