Draw an E.R.D with connectivity and cardinalities for the following narrative: You want to track information about 10 departments in your company. Each department has a unique name, is located on a specific floor and has a phone number. Within each department there is a department head and a range of additional employees. For all employees we want to track their name, who their boss is, their salary as well as the unique employee number each had assigned to them when they started the company. Each employee also has a set of skills. You need to track this set of skills so you can locate employees with the right skill set to be part of various cross department project teams. You need to also track information about all of the projects that are under taken by these various departments. Each project has a unique id, a name, a start date, and at least 3 employees on it. All projects have a project leader and a project coordinator. Any employee can be a project leader but they can only lead one project. Furthermore any employee can be a project coordinator and they can coordinate any number of projects. The attributes given are meant to help you understand the scenario. Don't include them on your ERD.

Draw an E.R.D with connectivity and cardinalities for the following narrative: You want to track information about 10 departments in your company. Each department has a unique name, is located on a specific floor and has a phone number. Within each department there is a department head and a range of additional employees. For all employees we want to track their name, who their boss is, their salary as well as the unique employee number each had assigned to them when they started the company. Each employee also has a set of skills. You need to track this set of skills so you can locate employees with the right skill set to be part of various cross department project teams. You need to also track information about all of the projects that are under taken by these various departments. Each project has a unique id, a name, a start date, and at least 3 employees on it. All projects have a project leader and a project coordinator. Any employee can be a project leader but they can only lead one project. Furthermore any employee can be a project coordinator and they can coordinate any number of projects. The attributes given are meant to help you understand the scenario. Don't include them on your ERD.

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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Question

Draw an E.R.D with connectivity and cardinalities for the following narrative:
You want to track information about 10 departments in your company. Each department
has a unique name, is located on a specific floor and has a phone number. Within each
department there is a department head and a range of additional employees. For all
employees we want to track their name, who their boss is, their salary as well as the
unique employee number each had assigned to them when they started the company.
Each employee also has a set of skills. You need to track this set of skills so you can
locate employees with the right skill set to be part of various cross department project
teams. You need to also track information about all of the projects that are under taken by
these various departments. Each project has a unique id, a name, a start date, and at least
3 employees on it. All projects have a project leader and a project coordinator. Any
employee can be a project leader but they can only lead one project. Furthermore any
employee can be a project coordinator and they can coordinate any number of projects.
The attributes given are meant to help you understand the scenario. Don't include them
on your ERD.

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