Hotel Management System DFD (Data Flow Diagram) Level 0, 1 and 2
The Data Flow Diagram (DFD) for Hotel Management System refers to the structured design on how the system manage the data that enters and exits it. This structure comes with 3 major level that broadens the idea of data handling as it go deeper in Data Flow Diagram. The DFD levels 0, 1 and 2 serves a guide in building the Hotel Management System.
Here’s what you need to know.
The Data Flow Diagram (DFD) represents the flow of data and the transformations in Hotel management system. These transformations occurs as data enters and exits a system. In the DFD, input, processing, and output are used to represent and define the overall system.
The following are the data inputs that the Hotel Management System can generate:
- Customers’ data
These potential inputs (data) can also be seen in other diagrams that builds up the whole system. Since Systems were not just about the data inputs and outputs but also the processes. So to create a well-engineered Hotel Management System, aside from DFD you can also use diagrams that follows to furnish your project. We have:
- UML Diagrams
- Class Diagram
- Sequence Diagram
- System Activity Diagram
- Use Case Diagram
- ER Diagram (Entity Relationship Diagram)
You can also have the Library Management System ideas from free programming projects with full source codes here: Hotel Management System Project Report – Documentation PDF.
Hotel Management System DFD (Data low Diagram) Level 0, 1 and 2
Time needed: 10 minutes.
Here’s the Data Flow Diagram levels 0,1 and 2 for Hotel Management System and the step-by-step way on how to create a Hotel management system DFD.
- Hotel Management System DFD Level 0 (Context Diagram)
The hotel management system level 0 represents a single process with external entities using the abstract view mechanism. This DFD Level 0 depicts the overall structure as a single bubble. It comes with incoming/outgoing indicators showing input and output data.
You will see the general process done in Hotel management system in this data flow diagram. This will also serve as a guide as you go through the deeper processes of Hotel management system. Take note that when you build the levels of data flow diagrams, the connections of the transactions and data also broadens and gets more specific.
- DFD for Hotel Management System Level 1
Next to the context diagram is the level 1 data flow diagram.
The content of Hotel management system DFD level 1 is gotten from the context diagram and is broken down into sub processes. System’s DFD Level 1 reveals further processing information. The actors that are going to use this system and the sub-processes of Hotel Management were shown here.
With being knowledgeable about the DFD level 1 of Hotel Management System, you will know then its broaden context terms. In addition to that, this will serve as your reference on how the system managed the inputs or data fed on the system. Then you will be also informed about the outputs that the system gives.
The processes shown in Data Flow Diagram Level 1 were all based on the concept of Hotel Management System.
- DFD for Hotel Management System Level 2
After presenting the Hotel management system DFD levels 0 and 1, next is the DFD level 2. The DFD level 2 is the highest abstraction level and the systems’ processes are detailed which were based on DFD level 1.
Hotel Management System DFD Level 2 represents more specific information on how it worked with the data inputs and outputs. It also shows the data storage represented by rectangular boxes and labeled as database. Since DFD Level 2 is mainly focused on data keeper for inputs and data source for outputs.
DFD level 2 let’s you know the ideas on where does the data inputs goes and outputs comes within the system. Considering the data flow levels mentioned above, you can determine well the importance of breaking the processes into more specific manner.
The presented level not only shows you the detailed processes of system, but also gives you precise destination of the data that flows in the system. This DFD will also be your references as you make your own Hotel management system DFD levels 0, 1 and 2.
Additional Knowledge on DFD Levels 0, 1 and 2 of Hotel Management System
What is Hotel Management System DFD level 0?
DFD level 0 is also known as context diagram. It is an abstract view using the mechanism represented as a single process with external parties. The data flow diagram level 0 also considers the entire system to be a single process and emphasizes the system’s interaction with external entities.
The only thing that you should bear in mind in building the Hotel Management System DFD Level 0 is to think of what is the main goal of the project. Then finalize the main users and the data that will be utilized when using the project. Last is to plot a scenario where there is an exchange data between the users and the system.
What does Hotel Management System DFD level 1 mean?
DFD Level 1 portrays a broad overview of the context diagram. It goes deeper into the idea presented in the context diagram then presents the sub-processes that completes the main process.
As the processes gets more specific, the flow of data in each process were also specified. This is to reveal the origin of the data and its destination. Note that DFD Level 1 only specified the processes and you could still emphasize its sub-processes in DFD Level 2. Just make sure that they are all understandable and well- explained.
What does a Hotel Management System DFD level 2 mean?
DFD Level 2 is the highest abstraction level and represents the system databases used. It delves even deeper into the concepts of DFD Level 1. It can be used to plan or record all of the specific/necessary information about how the system works. The DFD Level 2 is the completed data flow diagram illustration.
This level completes the whole data management from the user inputs, processing it, storing it in the database and giving the appropriate output to the users. That’s how the Whole Data flow Diagram works.
So that completes our discussion! I hope that this article about Data Flow Diagram (DFD) for Hotel Management System helped you a lot.
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