Car Rental System DFD Levels 0 1 2 | Data Flow Diagram Best of 2021
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The Data Flow Diagram (DFD) represents the flow of data and the transformations in Car Rental System.
In the DFD, input, processing, and output are used to represent and define the overall system.
Upon reading through this article about Car Rental System you’ll then find how the system react with the user and handles data that the system is receiving from the rentals.
The following are the flows that the Car Rental System can generate:
Manage Car Information
Manage Customer Rentals/Reservation
Monitor Range of Rentals
Generate Reports and Receipts
A context diagram is another name for it. With the mechanism represented as a single process and external parties it will be an abstract view. It depicts the overall structure as a single bubble with incoming/outgoing indicators showing input and output data.
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.
Context diagrams (level 0 DFDs) are diagrams in which the entire system is represented as a single process.
A single process node and its connections to external entities are depicted in Level 0 data flow diagrams.
What does Car Rental System level 1 DFD entail?
Level 1 DFDs provide a broad overview but go into greater depth than a context diagram. The single process node from the context diagram is broken down into sub processes in a level 1 data flow diagram.
The System level 1 DFD lists all of the major sub-processes that make up the entire system. A level 1 DFD can be thought of as a “detonated view” of the context diagram.
A single production node and its relationships to external entities are depicted in Level 0 data flow diagrams. Level 1 DFDs provide a broad overview but go into greater depth than a context diagram.
The single process node from the context diagram is broken down into sub processes in a level 1 data flow diagram.
What does Car Rental System level 2 DFD entail?
The 2-level DFD delves even deeper into the concepts of 1-level DFD. It can be used to plan or record all of the specific/necessary information about how the system works.
Level 2 DFD is the DFD’s highest abstraction level and represents the system’s basic modules as well as data flow between them.
So that completes our discussion fellas! And I hope that this PDF about Car Rental System Data Flow Diagram Levels 0 1 2 | Best DFD 2021 will help you a lot.
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