CS403 Assignment 2 Solution and Discussion
Raza Naqvi last edited by zaasmi
Assignment 2 CS403 file Solution Fall 2020
Question: In this technological era manually managing any system is a time-consuming task. A construction company named “Global Construction” wants to computerize their manual system, so that they can easily and efficiently manage their employees, clients, projects and finance. It will be beneficial for both clients and company. Company has different employees who work on different projects. Global Construction database system will store all the information in an organized manner by following the below business rules:
Client can visit the website, view completed projects details and client’s review/feedback about projects, places an order by filling the order form, give review/feedback.
Manager can assign projects to employees, view assigned projects. Manger can also view placed orders, can accept or cancel the order. He can also generate receipt; client will be able to view and download the receipt. Employees will be able to view assigned projects, he can also update status of the project as started, partially completed, or completed.
• Draw the ER diagram.
• Draw relationship cardinalities in alphabetical notation.
Consider the following relations/tables and perform the following binary operations and write the output:
(Shelve) U (CreditCard)
(CreditCard) – (Shelve)
Consider the following tables and perform cross matrix of Shelve, Medicine and Pharmacist
(Shelve X Medicine X Pharmacist)
Pharm_id Name Address
Ph001 Ahmad Lahore
Ph002 Tahir Islamabad
Ph003 Ather Karachi
Med_id Name Price Expiry_date
Md001 Panadol 20 22/2/2022
Md002 Disprin 20 22/3/2023
Md003 Brufen 40 22/4/2024
Convert the above entity relationship diagram into relational data model. You have to convert all the three important components (entities, attributes and relationships between different entities) of the entity relationship diagram into relational data model.