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CS403 - Database Management System Assignments 02 Solution & Discussion Last Date: Dec 12, 2014

Assignment No. 2

Semester Fall 2014

Database Management Systems – CS403

Total Marks: 20

Due Date: 12th Dec 2014

Objective:

The assignment has been designed to develop your ability to identity the Entities and their Attributes  and to draw the Entity Relationship Diagrams

Instructions:

Please read the following instructions carefully before solving & submitting assignment:

 

  1. The assignment will not be accepted after due date.
  2. Zero marks will be awarded to the assignment that does not open or the file is corrupt.
  3. The assignment file must be an MS Word file format (You can copy diagram from Visio to Word), Assignment will not be accepted in any other format.
  4. Zero marks will be awarded to the assignment if copied (from other student or copied from handouts or internet).
  5. Zero marks will be awarded to the assignment if the Student ID is not mentioned in the assignment file.

 

GOOD LUCK

 

 

Question 1    [20 Marks]

Read the two scenarios given below and identify the Entities and then identify Attributes related to these entities and hence draw the Entity Relationship Diagram (ERD) in both cases given below.

 

a) A company has a number of employees having their name, address and date of birth. The company has several projects having a code, description and start date. Some employees are given salary one hourly based work with fixed per hour rate while other are one payroll and have fixed per month salary plus residence allowance. Each employee is assigned one or more projects and he may not be assigned to any project. A project must have at least one employee and may have more than one employees assigned.

b) A laboratory has several chemists who work on various projects and who may use certain kind of equipment on each project, there are also different chemicals involved in a project that a chemist may use chemicals have a name, number and the quantity. Chemist has a name and phone number, while project has an id and start date. Equipment can have a number and its price.

 

Notice. You may use MS Word, MS Vision or any other drawing tool but not paint. After drawing the diagrams you have to past them in MS Word file and to send a single MS word file.

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