Railway Reservation System DFD (Data flow diagram) is often used as a first step to get a general picture of the system without going into too much detail, which can later be expanded on. In most cases, this is the overall data flow and processes of the Railway Reservation System.
The Data Flow Diagram is composed of Levels 0, 1 and 2 that explains the data handling of Railway Reservation System. In addition, it also acts as the foundation for subsequent Levels and DFD Level 1 extends DFD Level 0 and DFD Level 2 includes databases for all data used in the Project’s principal function.
DFD Railway Reservation System: Project Name and Details
| Name: | Railway Reservation System DFD (Dataflow Diagram) |
| Abstract: | The Railway Reservation System DFD shows the structure of the project in terms of its data management. It contains the important details on the flow of data and alternatives present in the project. |
| Diagram: | DFD also known as Data Flow Diagram |
| Users: | Customer, Employee, and Railway Admin |
| Tools Used: | Diagraming tools that provides data flow diagram symbols. |
| Designer: | Sourcecodehero |
What is Railway Reservation System DFD Data Flow Diagram
This Railway Reservation System DFD Data Flow Diagram represents the flow of data and the transformations in the form of diagrams Level 0, 1 and 2. These transformations occurs as data enters and exits in a system. In the DFD, input, processing, and output are used to represent and define the overall system.
A data flow diagram is a graphical view of how data is processed in a system in terms of input and output. The Data flow diagram (DFD) contains some symbol for drawing the data flow diagram.
Importance of DFD for Railway Reservation System
The importance of DFD for Railway Reservation System is that it helps the audience in understanding what is happening in the system. Also how the system manages its data at different levels of detail.
It is one of the methods use for development. It represents the system’s major processes, and alternatives that generate the flow of data within the system. Moreover, the data includes in Data Flow Diagram labeled properly to guide the developers on the structure of the Railway Reservation System.
The DFD Level 2 was chosen as the highest abstraction level because it contains all the information required to complete the System Data Flow Diagram. The diagrams then shows how to build the system in terms of data handling.
How to Create Railway Reservation System DFD level 0 1 2
Time needed: 5 minutes
Here are the example on how to create Railway Reservation System DFD level 0 1 2
- Railway Reservation System Context diagram(Level 0)
The DFD Level 0 is also known as the context diagram of the system. The context diagram presents the main idea as the basis for the subsequent levels. The basic idea is represented by a single process consisting of the main process, users, and data.
- Example of Reservation System DFD level 1
These level 1 diagram shows how data flows through the system. In addition, its content comes from the previous level, which helps you understand the main process of the Railway Reservation System even more. In DFD level 1, the diagram also shows more information about how processing works.
- Railway Reservation System DFD Level 2
DFD level 2 comes next after level 0 and 1. But creating the DFD Level 2 has two things to think about. DFD Level 2 should show all the processes and data in a more detailed way than level 1. As a result, it should also show the databases that are used.
This diagram shows you the database that stores all the information you need to finish the whole Railway Reservation System process. Furthermore, the main goal of DFD Level 2 is to show where all the data flows through the railway reservation system comes from and go to. Lastly, it is to show programmers on the project how the data flows inside it.
Conclusion:
It is very important for you to know the diagrams that used to design and build the Railway Reservation System. That is to help you build a fully-functioning system with the help of DFD, so that you can use it. Creating a DFD will help you see what inputs and outputs the system needs to process and transform. Not only that, but you can also connect its diagram to other diagrams,
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