Your SlideShare is downloading. ×
0
Airline reservation system db design
Airline reservation system db design
Airline reservation system db design
Airline reservation system db design
Airline reservation system db design
Airline reservation system db design
Airline reservation system db design
Airline reservation system db design
Airline reservation system db design
Airline reservation system db design
Airline reservation system db design
Airline reservation system db design
Airline reservation system db design
Airline reservation system db design
Airline reservation system db design
Airline reservation system db design
Airline reservation system db design
Airline reservation system db design
Airline reservation system db design
Airline reservation system db design
Airline reservation system db design
Airline reservation system db design
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×
Saving this for later? Get the SlideShare app to save on your phone or tablet. Read anywhere, anytime – even offline.
Text the download link to your phone
Standard text messaging rates apply

Airline reservation system db design

17,780

Published on

Won in the National Level DB Design Competition held at IIT Kharagpur. The topic was Airline Reservation System.

Won in the National Level DB Design Competition held at IIT Kharagpur. The topic was Airline Reservation System.

Published in: Technology, Business
2 Comments
4 Likes
Statistics
Notes
  • Nice. Could I have a look at your creates for this schema?
       Reply 
    Are you sure you want to  Yes  No
    Your message goes here
  • What would be a proper front end to this database design?
    I would be grateful if you could specify a front end with an example snippet if i were to simulate the same database design on a web based project.
       Reply 
    Are you sure you want to  Yes  No
    Your message goes here
No Downloads
Views
Total Views
17,780
On Slideshare
0
From Embeds
0
Number of Embeds
3
Actions
Shares
0
Downloads
759
Comments
2
Likes
4
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. IBM Technical Contest National Level Database Designing Narendran Thangarajan, @naren_live SSN College of Engineering, Chennai.
  • 2. The Problem Statement• Consider an Airline Company, AIRCONNECT.• It was launched as a Low-Cost carrier in 2005. Now it is emerging as one of the market leaders.• Need for a renewed database structure.
  • 3. 1. Gathering Requirements• Collection of details about existing airline reservation systems.• Experiencing the usage of the different sales channels available.• Planning the non-functional requirements to enhance performance, reliability and robustness.
  • 4. 2. Requirements Analysis• Analysis of the collected information to extract the required details, constraints, necessities etc.• Identification of entities. – Categorization – Noun Phrase method• Deduction of relationships among the entities in terms of Functional Dependencies.• Generation of new entities (based on relationships).• Identification of attributes from the requirements.
  • 5. Conceptual Schema
  • 6. Mandatory Features All details related to Customers - PASSENGER, TRAVEL_AGENT Customer Details – Derived : Further specializes to Passenger and Travel AgentPerson – Base Entity : Has all thedetails like Name, Address, etc.
  • 7. Mandatory Features All details related to Flight - FLIGHT,FLIGHT_LEG, LEG_INSTANCE A Flight is a travel from origin to destinationThe Flight_legs for every day areinstances of the same Flight_leg entity Each Flight has one or more Flight_legs, depending upon number of intermediate stops
  • 8. Mandatory Features• Details about Airplane : AIRCRAFT_TYPE, AIRPLANE, LEG_INSTANCE Aircraft Types are the different varieties of Each Leg Instance is airplanes like AirBus, Boeing assigned an Airplane Airplane includes all the individual Flights. Each Flight is of a particular Aircraft Type
  • 9. Mandatory Features Airports – AIRPORT Each Flight Leg must have an airport as the origin and destination.Airport entity holds the detailsabout each airport, includingits geodetic details
  • 10. Mandatory Features• Origins and Destination – ROUTERoute consists of all theroutes possible as definedby IATA. Each Flight Leg has a cost associated with it.
  • 11. Systematically convert the EER model to a relational schema• First make a flat conversion of attributes  fields.• Propagate keys based on participation constraints.• Normalization.
  • 12. Relational Schema
  • 13. Database Design• Choice of ORM – Why not RM.• Better support for composition of services.• ER vs EER : – Extensibility – Need for Aggregation• OOM based ORDBMS – Oracle 11g R2
  • 14. Efficiency• Selection of Data model – ORDMS.• Creation of correct indices. – Spatial Indices – Organizational Indices (for nested relations)• Indexing specific fields to enable faster JOINs.
  • 15. Innovation• Automated distance/fare calculation using Spatial Features.• Promoting Flight Services using Data Mining.• Find airports in proximity during emergency situations.• Using Ad-hoc queries to generate Demographic details.
  • 16. Security• Access Control with tuple-level and field-level granularity.• Role Based Access Control – Separate set of privileges for Passenger, Travel Agent and Moderator• Sensitive Data are encrypted using SHA-1 hashing algorithm.• Monitoring DBA and restricting privilege escalation.
  • 17. Presence of Bugs in SQL• Extensively tested my system and ensured it satisfies all the considered requirements.• Tested using the tool QUEST CODE TESTER FOR ORACLE
  • 18. Extendibility• Class – Sub Class relationship.• Hierarchical structure enables addition of extra features.• Relations are properly normalized.
  • 19. Best Practices• Adapted SDLC for arriving at the design.• Requirements Analysis – 5 rounds of discussion with the users and travel agents.• Visited websites to understand the existing Internet Booking implementations.• Booked a Ticket in SpiceJet using TeleBooking to understand the Telebooking system.• Documentation of every SDLC stage.
  • 20. References1. Fundamentals of DATABASE SYSTEMS, Fifth Edition -Ramez Elmasri, Shamkant B. Navathe2. An Introduction to Database Systems - C. J. Date3. Maruthi Air Links Pvt. Ltd – Chennai.4. Amadeus Global Reservation System5. www.spicejet.com6. www.flykingfisher.com
  • 21. SDLC stages in this project :1. Requirements Gathering - Users, Travel Agents.2. Requirements Specification Document.3. Requirements Analysis – Documented4. Conceptual Design : EER Model.5. EER to Schema Mapping.6. Implementation using Oracle 11g.7. Testing using Quest Code Tester.

×