Explain the pluses and minuses of having a two-tiered building.
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- Draw an Entity Relationship Diagram for all of those below. (a simple one) Each lecturer is identified by a unique number, name and phone. A lecturer teaches several courses, and for each course there is a unique code and title (not necessarily unique). There might be several lecturers in a course. Each course requires one or more text books. Each text book is used in at least one course. A text book is identified by a unique ISBN, and its title, authors, publisher and year of publication are known. Each course has a unique code. The bank has many customers. Every customer has at least one account with the bank. An account may be shared by several customers. Each customer has a unique number, type, the opening date and the balance. A flight carries many passengers on a specific airplane. Each airplane has a unique number, while each flight has a code (unique), destination and origin. A passenger has a name, passport number and nationalityJames River Jewelry is a small jewelry shop. While James River Jewelry does sell typical jewelry purchased form jewelry vendors, including such items as rings, necklaces, earrings, and watches, it specializes in hard-to-find Asian jewelry. Although some Asian jewelry is manufactured jewelry purchased from vendors in the same manner as the standard jewelry is obtained, many of the Asian jewelry pieces are often unique single items purchased directly from the artisan who created the piece (the term “manufactured” would be an inappropriate description of these pieces). It has a small but loyal clientele, and it wants to further increase customer loyalty by creating a frequent buyer program. In this program, after every 10 purchases, a customer will receive a credit equal to 50 percent of the sum of his or her 10 most recent purchases. This credit must be applied to the next (or “11th”) purchase. Figure D-1 shows data that James River Jewelry collects for its frequent buyer program.…A company makes items. Each item has a name, ID and component quantity. Every item contains many components. Each component can be supplied by one or more suppliers. Suppliers have names and IDS. Each component has ID, name, description, suppliers who supply them, and items in which they are used. Not all suppliers provide components, and a component is not always associated with a supplier. Also, a component always have to be associated with one or more items. Finally, the company contact customers using their IDs, Names and Phones to sell them items. A customer can buy one or more items.
- Please need to define it.James River Jewelry is a small jewelry shop. While James River Jewelry does sell typical jewelry purchased form jewelry vendors, including such items as rings, necklaces, earrings, and watches, it specializes in hard-to-find Asian jewelry. Although some Asian jewelry is manufactured jewelry purchased from vendors in the same manner as the standard jewelry is obtained, many of the Asian jewelry pieces are often unique single items purchased directly from the artisan who created the piece (the term “manufactured” would be an inappropriate description of these pieces). It has a small but loyal clientele, and it wants to further increase customer loyalty by creating a frequent buyer program. In this program, after every 10 purchases, a customer will receive a credit equal to 50 percent of the sum of his or her 10 most recent purchases. This credit must be applied to the next (or “11th”) purchase. Figure D-1 shows data that James River Jewelry collects for its frequent buyer program.James River Jewelry is a small jewelry shop. While James River Jewelry does sell typical jewelry purchased form jewelry vendors, including such items as rings, necklaces, earrings, and watches, it specializes in hard-to-find Asian jewelry. Although some Asian jewelry is manufactured jewelry purchased from vendors in the same manner as the standard jewelry is obtained, many of the Asian jewelry pieces are often unique single items purchased directly from the artisan who created the piece (the term “manufactured” would be an inappropriate description of these pieces). It has a small but loyal clientele, and it wants to further increase customer loyalty by creating a frequent buyer program. In this program, after every 10 purchases, a customer will receive a credit equal to 50 percent of the sum of his or her 10 most recent purchases. This credit must be applied to the next (or “11th”) purchase. Figure D-1 shows data that James River Jewelry collects for its frequent buyer program. A.…
- James River Jewelry is a small jewelry shop. While James River Jewelry does sell typical jewelry purchased form jewelry vendors, including such items as rings, necklaces, earrings, and watches, it specializes in hard-to-find Asian jewelry. Although some Asian jewelry is manufactured jewelry purchased from vendors in the same manner as the standard jewelry is obtained, many of the Asian jewelry pieces are often unique single items purchased directly from the artisan who created the piece (the term “manufactured” would be an inappropriate description of these pieces). It has a small but loyal clientele, and it wants to further increase customer loyalty by creating a frequent buyer program. In this program, after every 10 purchases, a customer will receive a credit equal to 50 percent of the sum of his or her 10 most recent purchases. This credit must be applied to the next (or “11th”) purchase. Figure D-1 shows data that James River Jewelry collects for its frequent buyer program. A.…Luxury-Oriented Scenic Tours (LOST) provides guided tours to groups of visitors to the Washington, D.C. area. In recent years, LOST has grown quickly and is having difficulty keeping up with all of the various information needs of the company. The company's operations are as follows: LOST offers many different tours. For each tour, the tour name, approximate length (in hours), and fee charged is needed. Guides are identified by an employee ID, but the system should also record a guide's name, home address, and date of hire. Guides take a test to be qualified to lead specific tours. It is important to know which guides are qualified to lead which tours and the date that they completed the qualification test for each tour. A guide may be qualified to lead many different tours. A tour can have many different qualified guides. New guides may or may not be qualified to lead any tours, just as a new tour may or may not have any qualified guides. Every tour must be designed to visit at least…Read the following description. "A hospital consists of a number of clinics and offers a number of treatments. Each treatment consists of a number of procedures and each procedure can be conducted at a different clinic. Doctors and nurses are medical staff and work at the hospital. A doctor can be in charge of one or more individual treatments and can perform any of the procedures that are part of the treatments they are in charge of. A nurse reports to an individual doctor and is based at an individual clinic and can perform all procedures offered by the clinic Patients make registration for the entire course of one or more treatments at the hospital but need to need to make individual appointments for each procedure of the treatment with a member of the medical staff." a) Make an Entity/Relationship model for the above description and clearly identify entities, attributes, relationships, cardinality ratios. b) Design an E/R diagram for the above description. (3) (4)
- Read the following description. "A hospital consists of a number of clinics and offers a number of treatments. Each treatment consists of a number of procedures and each procedure can be conducted at a different clinic. Doctors and nurses are medical staff and work at the hospital. A doctor can be in charge of one or more individual treatments and can perform any of the procedures that are part of the treatments they are in charge of. A nurse reports to an individual doctor and is based at an individual clinic and can perform all procedures offered by the clinic Patients make registration for the entire course of one or more treatments at the hospital but need to need to make individual appointments for each procedure of the treatment with a member of the medical staff." a) Make an Entity/Relationship model for the above description and clearly identify entities, attributes, relationships, cardinality ratios. b) Design an E/R diagram for the above description. c) Implement SQL…Write brief summaries (no longer than three lines) on each of the following topics: (what/why/advantage(s)/disadvantage(s)) Manchester-specific markersDraw the EER diagrams for the following problems using UML notation, Crow’s Foot notation and Chen notation: A large organization has several parking lots, which are used by staff. Each parking lot has a unique name, location, capacity, and number of floors. Each parking lot has parking spaces, which are uniquely identified using a space number. Members of staff can request the use of a parking space. Each member of staff has a unique number, name, telephone extension number, and vehicle registration number. The majority parking spaces are under cover and can be allocated for use by a member of staff for a monthly rate. Parking spaces that are not under cover are free to use when available. Up to twenty covered parking spaces are available for use by visitors to the company. However, only members of staff are able to book out a space for the day of the visit. There is no charge for this type of booking, but the member of staff must provide the visitor’s vehicle license number.…