Assignment title: Information
FACULTY OF HIGHER EDUCATION
Individual Assignment
HS2021 Database Design and Use
Trimester 2 2016
Date Due: Friday Week 10 by 5:00 PM
Marks: Weighting 10%
Student Name (Block letters) Student Number:
___________________________ _____________
HOLMES
INSTITUTE
FACULTY OF
HIGHER
EDUCATIONHS2021 Database Design and Use Trimester 2 2016 1
Assignment Description: In this assignment you will use the given case study (Case
Study: City Jail) to design a database. You need to analyse the case study to identify
database requirements and design a complete E-R diagram in 3NF form. You final
outcome will be ready to be implemented in Oracle12c which will be used for your
assignment two.
Case Study: City Jail
Your company receives the following memo.
MEMO
To: Database Consultant
From: City Jail Information Director
Subject: Establishing a Crime-Tracking Database System
It was a pleasure meeting with you last week. I look forward to working with your
company create a much needed crime-tracking system. As you requested, our project
group has outlined the crime-tracking data needs we anticipate. Our goal is to simplify
the process of tracking criminal activity and provide a more efficient mechanism for
data analysis and reporting. Please review the data needs outlined below and contact
me with any questions.
Criminals: Name, address, phone number, violent offender status (yes/no), probation
status (yes/no) and aliases.
Crimes: classification (felony, misdemeanour, other), date charged, appeal status
(closed, can appeal, in appeal), hearing date, appeal cutoff date (always 60 days after
the hearing date), arresting officers (can be more than one officer), crime codes (such
as burglary, forgery, assault; hundreds of codes exist), amount of file, court fee,
amount paid, payment due date, and charge status( pending, guilty, not guilty)
Sentencing: start date, end date, number of violations (such as not reporting to
probation officer), and type of sentences (jail period, house arrest, probation)
Appeals: appeal filling date, appeal hearing date, status (pending, approved and
disapproved)
Note: Each crime case can be appealed up to three times.
Police officers: name, precinct, badge number, phone contact, status (active/inactive)
Additional notes:
A single crime can involve multiple crime charges, such as burglary and assault.
Criminals can be assigned multiple sentences. For example, a criminal might be
required to serve a jail sentence followed by a period of probation.HS2021 Database Design and Use Trimester 2 2016 2
Assignment requirements:
First, based on the memo, create an initial database design (E-R model) for the
city jail that indicates entities, attributes (columns), primary keys, and
relationships between the entities. Use only the entities identified in the memo
to develop the E-R model.
Second, create a list of additional entries or attributes not identified in the
memo that might be applicable to a crime-tracking database.
Furthermore, normalize your database design to 3NF so that it is ready to be
deployed to Oracle12c SQL developer.
Report structure and assignment submission:
1. Content of your report
a. Prepare a report which will detail an E-R diagram (I need softcopy
of it) and justification your choice of entities and attributes.
b. Detail the normalization process of the ER diagram in details.
c. Describe each additional entries or attributes you have created and
why?
d. Write down all the assumptions you have considered while
preparing the ER diagram.
2. Assignment Submission Guideline:
You need to submit both online and hardcopy
Online: submit the softcopy via BlackBoard
Hardcopy: Submit via assignment submission box
3. Assignment Date Due: Friday Week 10 Friday, 2016 by 5:00 PM
Marks allocation:
Assignment components marks
First, based on the memo, create an initial database design (E-R model) for
the city jail that indicates entities, attributes (columns), primary keys, and
relationships between the entities. Use only the entities identified in the
memo to develop the E-R model.
3%
Second, create a list of additional entries or attributes not identified in the
memo that might be applicable to a crime-tracking database. 2%
Furthermore, normalize your database design to 3NF so that it is ready to be
deployed to Oracle12c SQL developer. 5%HS2021 Database Design and Use Trimester 2 2016 3
Marking Guide:
Components Description of the section
Correctness of the diagram
and normalization process
To what extend your ER diagram is correct and
how detail you have describe the normalization
process.
Justification How well did you justify the selection of entities
and attributes?
Clarity of the diagram How clear is the illustration of your diagram?