Draw an entity-relationship diagram, including minimum and maximum cardinality, for thefollowing: The system stores information about two things: cars and owners. A car has attributesfor make, model, and year. The owner has attributes for name and address. Assume that a carmust be owned by one owner and an owner can own many cars, but an owner might not ownany cars (perhaps she just sold them all, but you still want a record of her in the system).

Answered: Draw an entity-relationship diagram,…

Database System Concepts

7th Edition

ISBN:9780078022159

Author:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Publisher:Abraham Silberschatz Professor, Henry F. Korth, S. Sudarshan

Chapter1: Introduction

Section: Chapter Questions

Problem 1PE

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A company database needs to store information about employees (identified by ssn, with salary and phone as attributes), departments (identified by dno, with dname and budget as attributes), and children of employees (with name and age as attributes). Employees work in departments; each department is managed by an employee; a child must be identified uniquely by name when the parent (who is an employee; assume that only one parent works for the company) is known. We are not interested in information about a child once the parent leaves the company. Draw an ER diagram that captures this information.
Draw the Level 0 and Level 1 Data Flow Diagram for a Car Purchasing System. Scenario: An owner has to register first to buy a car by providing his personal details, which are later saved in the registration database, then the system will give the registration number back to the owner. The owner will then need to provide the model, name, type of car he wants to buy, and the system automatically reads the status of the car from the car database, which later informs the owner regarding its availability. The owner pays the cost of the car. The system will update the payment database and issue a receipt back to the owner.
Design an ER schema for prescription monitoring based on the given data: Patients are defined by an identity number, a first name and a last name, and by a birth-date. Doctors are defined as well by an identity number, a first name, a last name, and a birth-date, while additionally they will be characterized by a work start date and a specialty. Pharmaceutical companies will be defined by a name, and a telephone number. Medicines will be defined by a commercial name, their manufacturer, and their active ingredient. Pharmacies will be defined by a name, an address and a telephone number. Each patient has one doctor and each doctor has at least one patient. A doctor can prescribe certain medicines to his patients. Each pharmacy sells several medicines, each at a specific price. Each medicine can be sold by several pharmacies possibly at a different price. Pharmaceutical companies have contracts with pharmacies. Each pharmaceutical company may have contracts with several pharmacies. Each…
There has been a use case diagram posted for you below, just add more things to it. Please make sure to include "uses" and "extends" just like in the diagram below. Please also provide an explanation for the diagram (maybe explain all the associations).
Draw ER diagram from the following description:Entities: PersonRelationships: Person (Man) Marries Person (Woman)a. Cardinality: one-to-oneb. Participation: optional participation of both Person (Man) and Person (Woman)2. Person (Man) IsFatherOf Person (Child)a. Multiplicity: 0…1 on Person (Man) side and 0…* on Person (Child) side3. Person (Woman) IsMotherOf Person (Child)a. Multiplicity: 0…1 on Person (Man) side and 0…* on Person (Child) sideAttributes:1. Person: cnicNo {PK}, familyNo {AK}, name (composite of firstName and lastName), dob, gender, age (derived from dob)2. Marries: dateOfMarriage(b) Enlist the entities, relationships, and their attributes from the following ER diagram
Draw an ER diagram for the following scenario: A designer has a store of designer dresses both for male and female. People can buy as well as take dresses on rent from the store. Each dress in the designer's store, is identified by unique ID. A dress in the store can be categorized into various categories Western, Indian, Indo-westem, etc. The designer maintains the name, phone number of people who have taken dresses on rent. The designer also maintains the name, phone number, and address of people who have bought dresses from the store. The designer also collects feedback from the people who have bought or taken dresses on rent from the store. Design the ER diagram by mentioning all the structural constraints. You may also include additional information in addition to the requirements listed.
Design an ER schema for prescription monitoring based on the given data: Patients are defined by an identity number, a first name and a last name, and by a birth-date. Doctors are defined as well by an identity number, a first name, a last name, and a birth-date, while additionally they will be characterized by a work start date and a specialty. Pharmaceutical companies will be defined by a name, and a telephone number. Medicines will be defined by a commercial name, their manufacturer, and their active ingredient. Pharmacies will be defined by a name, an address and a telephone number. Each patient has one doctor and each doctor has at least one patient. A doctor can prescribe certain medicines to his patients. Each pharmacy sells several medicines, each at a specific price. Each medicine can be sold by several pharmacies possibly at a different price. Pharmaceutical companies have contracts with pharmacies. Each pharmaceutical company may have contracts with several pharmacies. Each…
In this unit, we explore the structured approach to modeling business processes. In this practical assignment, using the business process of a fictional package delivery service (a courier company) called On the Spot Courier Services, you will create data flow diagrams that demonstrate the business processes that would need to be supported by a new system. Scenario: When Bill got an order, at first, only on his phone, he recorded when he received the call and when the shipment would be ready for pickup. Sometimes, customers wanted immediate pickup; sometimes, they were calling to schedule a later time in the day for pickup. Once he arrived at the pickup location, Bill collected the packages. It was not uncommon for the customer to have several packages for delivery. In addition to the name and address of the delivery location, he also recorded the time of pickup. He noted the desired delivery time, the location of the delivery, and the weight of the package to determine the courier…
MAKE AN ER DIAGRAM FOR THE FOLLOWING PROMPT: Various physicians are working for a clinic and these doctors are identified by their respective employee numbers. The other descriptors of a doctor are: name, gender, address, and phone. Each physician’s specialty and rank are captured. Every physician serves as a primary care physician for at least one patient; however, no more than 20 patients are allotted to a physician. Every patient is assigned one physician for primary care. Data for patients include: patient number (the unique identifier of a patient), name, gender, date of birth, blood type and the code and name of allergies, if any. Physicians may prescribe medications to patients; thus, it is necessary to capture which physician(s) prescribe(s)s what medication(s) to which patient(s) along with dosage and frequency. In addition, no two physicians can prescribe the same medication to the same patient. If a physician leaves the clinic, all prescriptions written by that physician…
Design the UML class diagram to support the system below and upload a picture of your diagram. Used Class Material Website: You are designing a website where students can resale their used material for a course. A course may have multiple sections. The course material is specific to each section of a class. Not all course may require class materials, but they may require many of them. A student can have many used materials for sale. The class material can be either: · Textbook: which has a price(mandatory), title(mandatory), authors(optional), edition(optional) · Software: which has a price(mandatory), title(mandatory), publisher(optional), and also its operating system (mandatory) · Equipment: which has a price(mandatory), title(mandatory), description(mandatory) All class material can be either available or sold. Do a class diagram with: 1. all the classes , 2. their associations 3. their multiplicity . 4. For each classes, where are the…
Draw UML class diagram according to descriptions given below. Please include appropriate labeling and multiplicity in your diagrams. You do not need to include the attributes and operations for the classes. A Rectangle object is composed of exactly four Line objects A Customer object is able to initiate zero or more Transaction A Student Object must enrolls in at least one, at most five Subject A Mouse object is kind of a Rodent A Rodent object is a kind of Mammal Object.
Q1. Draw an E-R Diagram for the following situation. At the university system each STUDENT must be assigned an ADVISOR who counsels students about degree requirements and helps students register for classes (COURSE). Each student must register (REGISTRATION) for classes with the help of an advisor, but if the student's assigned advisor is not available, the students may register with any advisor, We must keep track of students, the assigned advisor for each, and the name of the advisor with whom the students registered for the current term. Tips: Attributes of STUDENT include Student ID (the identifier), Name, and Major. Attributes of ADVISOR include Advisor ID (the identifier), Name, and Department. Attributes of COURSE include Course ID (the identifier), Title, and Credits. Attributes of REGISTRATION include Semester, and Year. Based on your background, think of logical and standard relationships between the given entities.

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