Data flow diagram for Airline Reservation System is used to create an overview of Airline ticket reservation system without going in too much detail into its internal working. The system is used to manage Airline ticket booking operation online with the help of computer system. Customer can go to Airline website and check seat availability for any travel route on any particular date and at the same time they can also buy tickets online.
This process saves a lot of time of customer and also reduce workload on airline employees. The overall Ticket Reservation System is represented and described using input, processing and output in DFD. The DFD diagram for Airline Reservation System provides information about the inputs and outputs of each process and entity of entire system such as route, plane, flight, customer etc.
Following are Online Airline Reservation System DFD level 0 1 2. Let us explain each one by one.
Context Level (0 Level) DFD of Airline Reservation System
The Zero Level DFD for Airline Ticket Booking System shows the overview of entire online ticket reservation process. Roughly we can say that this is an abstract view of overall reservation system. This is also called as context diagram for Airline Reservation System in which entire system is represented as single process with its relationship with external entities such as admin, customer etc.
In this context level data flow diagram, you will see the general process done during ticket reservation.
Download Airlines Reservation System Synopsis pdf
First Level Data Flow Diagram (Level 1 DFD) of Airline Reservation System
The first level DFD (1st Level) of Airline Reservation System focus on more deep level details of internal processing. Level 1 DFD includes all the major sub processes that makes the entire ticket reservation system. It also identifies data store of flight schedule that contains all information about travel route, destination and fare. This information taken from several master data used is in the entire system where it needed such as search for seat on any particular route and date, ticket confirmation and final ticket printing etc.
The important process to be carried out are:
- User login
- Manage Flight Details
- Customer Registration
- Reservation Process
- Payment & Ticket Print
The level 1 DFD for Flight Reservation System represents a broad overview but go into much depth than context level diagram. You can get more clear picture of the entire working in 1st level DFD.
Second Level Data Flow Diagram (2nd Level DFD) of Airline Reservation System
Level 2 DFD for Airline Reservation System delves even deeper into the concept of Level 1 DFD.
The first level (1st level) DFD represents how the system is further divided into sub systems and the second level provides more details about Travel destination, Plane, Plane Type, Flight Record, Search Flight, Seat Confirmation, Payment & Ticket Printing.
Following are some functionality of Ticket Reservation System
- Admin can add, edit and delete master records for travel destination, plane etc.
- Admin can add, edit and delete new flight route.
- Customer can register online.
- Customer can search for seat on desired route and date
- Customer can confirmation seat
- Customer can make ticket amount payment online
- Admin can prepare reservation report
- Customer can print ticket
After viewing 2nd level DFD it will be clearer to you that where data input goes and from where output data comes. This Level 2 Data Flow Diagram shows you a detailed process of entire system and also give you a detailed view of data that flows into the system.
May this detailed article on Airline Ticket Reservation System DFD will help you in your project preparation.