Consider the ER diagram below, which shows a simplified schema for an airline reservations system. Extract from the ER diagram the requirements and constraints that resulted in this schema. Try to be as precise as possible in your requirements and constraints specification.
Consider the ER diagram below, which shows a simplified schema for an airline reservations system. Extract from the ER diagram the requirements and constraints that resulted in this schema. Try to be as precise as possible in your requirements and constraints specification.
Computer Networking: A Top-Down Approach (7th Edition)
7th Edition
ISBN:9780133594140
Author:James Kurose, Keith Ross
Publisher:James Kurose, Keith Ross
Chapter1: Computer Networks And The Internet
Section: Chapter Questions
Problem R1RQ: What is the difference between a host and an end system? List several different types of end...
Related questions
Question
100%
Question 3
Consider the ER diagram below, which shows a simplified schema for an airline reservations system. Extract from the ER diagram the requirements and constraints that resulted in this schema. Try to be as precise as possible in your requirements and constraints specification.
Transcribed Image Text:Question 3
Consider the ER diagram below, which shows a simplified schema for an airline reservations system.
Extract from the ER diagram the requirements and constraints that resulted in this schema. Try to be as
precise as possible in your requirements and constraints specification.
Airport_codo City State
Name
DEPARTURE
AIRPORT
N
Leg no
AIRPORT
Scheduled_dep_timo
Scheduled_arr_time
FLIGHT_LEG
N
CAN
LAND
ARRIVAL_
AIRPORT
Instances
LEGS
Number
INSTANCE_OF
Airline
N.
Type name Max_seats
Company
FLIGHT
AIRPLANE_
TYPE
Arr_time
Weekdays
DEPARTS
ARRIVES
Restrictions
FARES
Oep_time
Amount
ТҮРE
Code
FARE
N.
Airplane id
Total_no_of_seats
No of_avail seats
Date
AIRPLANE
ASSIGNED
LEG INSTANCE
Customer_name
Cphone
Seat no
RESERVATION
Notes:
A LEG (segment) is a nonstop portion of a flight.
A LEG INSTANCE is a particular occurrence
of a LEG on a particular date.
SEAT
Expert Solution
This question has been solved!
Explore an expertly crafted, step-by-step solution for a thorough understanding of key concepts.
This is a popular solution!
Trending now
This is a popular solution!
Step by step
Solved in 2 steps
Recommended textbooks for you
Computer Networking: A Top-Down Approach (7th Edi…
Computer Engineering
ISBN:
9780133594140
Author:
James Kurose, Keith Ross
Publisher:
PEARSON
Computer Organization and Design MIPS Edition, Fi…
Computer Engineering
ISBN:
9780124077263
Author:
David A. Patterson, John L. Hennessy
Publisher:
Elsevier Science
Network+ Guide to Networks (MindTap Course List)
Computer Engineering
ISBN:
9781337569330
Author:
Jill West, Tamara Dean, Jean Andrews
Publisher:
Cengage Learning
Computer Networking: A Top-Down Approach (7th Edi…
Computer Engineering
ISBN:
9780133594140
Author:
James Kurose, Keith Ross
Publisher:
PEARSON
Computer Organization and Design MIPS Edition, Fi…
Computer Engineering
ISBN:
9780124077263
Author:
David A. Patterson, John L. Hennessy
Publisher:
Elsevier Science
Network+ Guide to Networks (MindTap Course List)
Computer Engineering
ISBN:
9781337569330
Author:
Jill West, Tamara Dean, Jean Andrews
Publisher:
Cengage Learning
Concepts of Database Management
Computer Engineering
ISBN:
9781337093422
Author:
Joy L. Starks, Philip J. Pratt, Mary Z. Last
Publisher:
Cengage Learning
Prelude to Programming
Computer Engineering
ISBN:
9780133750423
Author:
VENIT, Stewart
Publisher:
Pearson Education
Sc Business Data Communications and Networking, T…
Computer Engineering
ISBN:
9781119368830
Author:
FITZGERALD
Publisher:
WILEY