ERD Homework For the below two examples, identify the main entities and the related relationships • A college runs many courses. A student can enrol on many courses. Each course has one course co-ordinator but may be taught by many lecturers. • A car hire firm wants to introduce a computer system in order to keep track of its fleet of cars, its customers and details of car hirings. Each car belongs to a hire price band. A car remains in that price band for the duration of its life. The company would like to know which model of car is the most popular.

Q: Read carefully the following case: Imagine that you work as an internal auditor for a company that…

A: The process begins with the assistant manager preparing the cash registers with petty cash and…

Q: Create a use case diagram for the following system: A video store (AVS) runs a series of faily…

A: The use cases are  described following steps

Q: esign a RELATIONAL SCHEMA not an ERD for the pllowing A job-shop accounting system is part of an…

A: Here we describe all points:

Q: Computer Science Create the ER diagram for the following requirements and map it to relational…

A: ER diagram stands for Entity Relationship diagram. It contains mainly three components that are:…

Q: other computer-science or IT jobs rely on combinatorics

A: other computer-science or IT jobs rely on combinatorics

Q: James River Jewelry is a small jewelry shop. While James River Jewelry does sell typical jewelry…

A: A. Functional dependencies : LastName, FirstName ->  Phone InvoiceDate ->-> InvoiceItem,…

Q: and one extra: relational composition which generalizes composition of functions a (RoS) c ::= 3b e…

A:

Q: The sales department clerk receives customer orders from the customers and prepares a  three-part…

A: In this question we have to design a flowchart for the sales procedures in an organization, and it…

Q: Consider the following information about a patient database

A: There are following Entities with attributes in the diagram: Patient PatientID Admission Date…

Q: 4. A database is built in the library to catalogue books and handle book lending. Each book in the…

A: 4a. In table User UID ( unique reference number ) of user is taken as primary key because it has to…

Q: DATABASE MANAGEMENT (N.B NO ATTRIBUTES TO BE DISPLAYED JUST ENTITIES CONNECTED USING RELATIONSHIP…

A: Given The answer is given below.

Q: Write scenario for a borrow book(for student) and design the corresponding Sequence Diagram ( for a…

A: The current scenario here is to draw the sequence diagram for a student to borrow a book from the…

Q: A company database needs to store information about employees (identified by ssn, with salary and…

A: Introduction: An ER diagram is a graphical representation of entity-relationship data, which is used…

Q: Draw an ER diagram for the following scenarios:

A: The question asks to create an Entity-Relationship (ER) diagram for a library system at Stanford…

Q: Draw an ER diagram for the following scenarios: Library System Stanford University is having a…

A: Given scenario:To create an Entity-Relationship (ER) diagram for a library system at Stanford…

Q: The database is for a portion of a healthcare organization that tracks the tests performed on…

A: The entity-relationship diagram of patient management system shows all the visual instrument of data…

Types of database architectures

A Database Architecture represents the Database Management System’s (DBMS) design (schema). The DBMS architecture makes it easy to understand the components involved in the database system and their relations. The DBMS architecture may vary based on the system on which it runs. Some systems contain both client and server machines whereas some run only on a server machine. Based on the architecture, the system can be classified as centralized, decentralized, or hierarchical.