Online Billing System Dataflow Diagram

Posted By freeproject on April 25, 2017

Online Billing System Data flow diagram is often used as a preliminary step to create an overview of the Online Billing without going into great detail, which can later be elaborated.it normally consists of overall application dataflow and processes of the Online Billing process. It contains all of the userflow and their entities such all the flow of Bill, Payment, Receipt, Payment Mode, Bill Type, Customer, Registration. All of the below diagrams has been used for the visualization of data processing and structured design of the Online Billing process and working flow.


Zero Level Data flow Diagram(0 Level DFD) of Online Billing System :

This is the Zero Level DFD of Online Billing System, where we have eloborated the high level process of Online Billing. It’s a basic overview of the whole Online Billing System or process being analyzed or modeled. It’s designed to be an at-a-glance view of Bill Type,Customer and Registration showing the system as a single high-level process, with its relationship to external entities of Bill,Payment and Receipt. It should be easily understood by a wide audience, including Bill,Receipt and Bill Type In zero leve DFD of Online Billing System, we have described the high level flow of the Online Billing system.

High Level Entities and proccess flow of Online Billing System:

  • Managing all the Bill
  • Managing all the Payment
  • Managing all the Receipt
  • Managing all the Payment Mode
  • Managing all the Bill Type
  • Managing all the Customer
  • Managing all the Registration
Zero Level DFD Online Billing System

First Level Data flow Diagram(1st Level DFD) of Online Billing System :

First Level DFD (1st Level) of Online Billing System shows how the system is divided into sub-systems (processes), each of which deals with one or more of the data flows to or from an external agent, and which together provide all of the functionality of the Online Billing System system as a whole. It also identifies internal data stores of Registration, Customer, Bill Type, Payment Mode, Receipt that must be present in order for the Online Billing system to do its job, and shows the flow of data between the various parts of Bill, Receipt, Customer, Registration, Bill Type of the system. DFD Level 1 provides a more detailed breakout of pieces of the 1st level DFD. You will highlight the main functionalities of Online Billing.

Main entities and output of First Level DFD (1st Level DFD):

  • Processing Bill records and generate report of all Bill
  • Processing Payment records and generate report of all Payment
  • Processing Receipt records and generate report of all Receipt
  • Processing Payment Mode records and generate report of all Payment Mode
  • Processing Bill Type records and generate report of all Bill Type
  • Processing Customer records and generate report of all Customer
  • Processing Registration records and generate report of all Registration
First Level DFD Online Billing System

Second Level Data flow Diagram(2nd Level DFD) of Online Billing System :

DFD Level 2 then goes one step deeper into parts of Level 1 of Online Billing. It may require more functionalities of Online Billing to reach the necessary level of detail about the Online Billing functioning. First Level DFD (1st Level) of Online Billing System shows how the system is divided into sub-systems (processes). The 2nd Level DFD contains more details of Registration, Customer, Bill Type, Payment Mode, Receipt, Payment, Bill.

Low level functionalities of Online Billing System

  • Admin logins to the system and manage all the functionalities of Online Billing System
  • Admin can add, edit, delete and view the records of Bill, Receipt, Bill Type, Registration
  • Admin can manage all the details of Payment, Payment Mode, Customer
  • Admin can also generate reports of Bill, Payment, Receipt, Payment Mode, Bill Type, Customer
  • Admin can search the details of Payment, Bill Type, Customer
  • Admin can apply different level of filters on report of Bill, Payment Mode, Bill Type
  • Admin can tracks the detailed information of Payment, Receipt, Payment Mode, , Bill Type
Second Level DFD Online Billing System
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