Expanded entity relationship model diagram

Assignment Help Database Management System
Reference no: EM13189287

You must have at least these entities: REGION, FACTORY, EMPLOYEE, DEPARTMENT, TRAINING CLASS. You should use the attributes shown below.
(1) You are to design an Expanded Entity Relationship Model Diagram. An example of the Expanded Entity Relationship Model Diagram is seen in Figure 3.27 on page 89.
(2)You are to draw a relational diagram with attributes shown. See examples of relational diagrams with attributes. See figure 3.28 and figure 3.30. Be sure to indicate the primary and foreign keys in each design.

Also, be sure to indicate whether there is a 1:1, 1:M, M:1, or M:N relationship between the tables.
(3) Use the following information for this problem.

The Southern Widgets Corporation has many regions and operates many factories.

Each factory is located in a region, and each region can be home to many Southern Widgets Corporation's factories.

Each of the factories is composed of many departments.

Each department has many employees assigned to it, but each employee works for only one department at one of the factories. An employee cannot work at more than one factory at a time.

An employee may have completed no training class, one training class, or several training classes. Each training class can be taken by several employees.

The data to be stored for each of the entities is as follows:

Region -- region code, region name, region manager

Factory -- factory number, factory name, region number

Employee - employee number, employee name, job description, date of birth, department number

Department - department code, department name, manager number, factory number

Training class -- class number, class description, date of class, cost of class, instructor

Region number and region code are referring to the same information

At the start or end of each attribute name, include your initials.

Reference no: EM13189287

Questions Cloud

Segmentation criteria would you use to segment this market : What segmentation criteria would you use to segment this market? Of the segments you included in your answer above, select one as your target market and describe it in detail. Why did you select it?
How many firms must there be for the cournot equilibrium : Suppose there is a boombox market that has the following demand curve: P=400-20Q and there are N firms, each with a marginal cost of 30. How many firms must there be for the cournot equilibrium price to go below 40
What is the angle of elevation : Sears Tower is 1353 ft tall, as you walk 210 ft from building, look back at the top, what is the angle of elevation?
How much would square yard products total income : in producing Division 3's product are currently purchased from outside suppliers at a cost of $5 per unit. However, the same materials are available from Division 6. Division 6 has unused capacity and can produce the materials needed by Divisi..
Expanded entity relationship model diagram : Each department has many employees assigned to it, but each employee works for only one department at one of the factories. An employee cannot work at more than one factory at a time.
Find the rate of change of the distance : A baseball diamond is a square 90 feet on a side. A player is running from second base to third base at the rate of 15 feet per second. Find the rate of change of the distance from the player to home plate at the instant the player is 10 feet from..
At what rate must in increase the money supply : Additionally, due to innovations in the financial system, the velocity of money is rising at 2% per year. If the Fed wants to maintain a zero-inflation monetary policy, at what rate must in increase the money supply What if they want to keep infla..
How many bags of seed are needed : a rectangular plot of land is to be seeded with grass. If the plot i 12m X 18m and a 1 kg bag of seed is needed for 85m squared of land, how many bags of seed are needed.
Characteristic of a realigning election : All of the following are characteristic of a realigning election except

Reviews

Write a Review

Database Management System Questions & Answers

  Design an relational model model

Design an Relational Model (RM) model of a database (DB) that will be useful for each of the chosen enterprises and Implement the 2 enterprise relational DBs using either MySQL or SQLite

  Develop a new information system

MGMT321 Group Project :  You were hired as an analyst to develop a new information system to automate the payroll transactions in a mid-size organization. The proposed system will contain employees’ data and interface with the organization’s General ..

  Create and run the following sql queries

Create and run the following  sql  queries and submit the screen shot of your result. Also submit the file lab_06_03. sql

  Compute canonical cover for set of functional dependencies

Compute a canonical cover for the above set of functional dependencies (show each step of your derivation with an explanation).

  Same name to attributes which are in different tables

What about giving same name to attributes which are in different tables but are not same? For instance, "Description" in both a Course table and a Classroom table.

  Write names and e-mail addresses showing foreign key columns

Illustrate all the data in each of four tables. Don't show foreign key columns. Write down the names and e-mail addresses for all customers who have had stove repair which cost more than $50.

  Create data file grades with records of the form

Input names of students from the user, terminated by ZZZ, and create a data file GRADES with records of the form.

  Implement a database of courses and students for a school

Implement a database of courses and students for a school.

  Construct a data warehouse bus matrix

First construct a Data Warehouse Bus Matrix to identify the company's business processes and any likely Data Marts and design the star schema for any Data Marts you have identified.

  Yrace history of the development of databases

In 500 words or less, trace the history of the development of databases beginning with pre-computer days to the present.

  Criteria selecting a life-cycle model for the project

What criteria would you use in selecting a life-cycle model for the project?

  Database management challenge than relational database

What is it about a 200 MB video or audio file which makes it so much more of database management challenge than relational database the same size?

Free Assignment Quote

Assured A++ Grade

Get guaranteed satisfaction & time on delivery in every assignment order you paid with us! We ensure premium quality solution document along with free turntin report!

All rights reserved! Copyrights ©2019-2020 ExpertsMind IT Educational Pvt Ltd