- Posted By: namita
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Posted By namita on July 11, 2017
Telephone Billing Payment System Data flow diagram is often used as a preliminary step to create an overview of the Telephone without going into great detail, which can later be elaborated.it normally consists of overall application dataflow and processes of the Telephone process. It contains all of the userflow and their entities such all the flow of Bills, Customers, Connections, Tarrifs, Connection Types, Payments, Login. All of the below diagrams has been used for the visualization of data processing and structured design of the Telephone process and working flow.
Zero Level Data flow Diagram(0 Level DFD) of Telephone Billing Payment System :
This is the Zero Level DFD of Telephone Billing Payment System, where we have eloborated the high level process of Telephone. It’s a basic overview of the whole Telephone Billing Payment System or process being analyzed or modeled. It’s designed to be an at-a-glance view of Connection Types,Payments and Login showing the system as a single high-level process, with its relationship to external entities of Bills,Customers and Connections. It should be easily understood by a wide audience, including Bills,Connections and Connection Types In zero leve DFD of Telephone Billing Payment System, we have described the high level flow of the Telephone system.High Level Entities and proccess flow of Telephone Billing Payment System:
- Managing all the Bills
- Managing all the Customers
- Managing all the Connections
- Managing all the Tarrifs
- Managing all the Connection Types
- Managing all the Payments
- Managing all the Login
First Level Data flow Diagram(1st Level DFD) of Telephone Billing Payment System :
First Level DFD (1st Level) of Telephone Billing Payment 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 Telephone Billing Payment System system as a whole. It also identifies internal data stores of Login, Payments, Connection Types, Tarrifs, Connections that must be present in order for the Telephone system to do its job, and shows the flow of data between the various parts of Bills, Connections, Payments, Login, Connection Types 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 Telephone.Main entities and output of First Level DFD (1st Level DFD):
- Processing Bills records and generate report of all Bills
- Processing Customers records and generate report of all Customers
- Processing Connections records and generate report of all Connections
- Processing Tarrifs records and generate report of all Tarrifs
- Processing Connection Types records and generate report of all Connection Types
- Processing Payments records and generate report of all Payments
- Processing Login records and generate report of all Login
Second Level Data flow Diagram(2nd Level DFD) of Telephone Billing Payment System :
DFD Level 2 then goes one step deeper into parts of Level 1 of Telephone. It may require more functionalities of Telephone to reach the necessary level of detail about the Telephone functioning. First Level DFD (1st Level) of Telephone Billing Payment System shows how the system is divided into sub-systems (processes). The 2nd Level DFD contains more details of Login, Payments, Connection Types, Tarrifs, Connections, Customers, Bills.Low level functionalities of Telephone Billing Payment System
- Admin logins to the system and manage all the functionalities of Telephone Billing Payment System
- Admin can add, edit, delete and view the records of Bills, Connections, Connection Types, Login
- Admin can manage all the details of Customers, Tarrifs, Payments
- Admin can also generate reports of Bills, Customers, Connections, Tarrifs, Connection Types, Payments
- Admin can search the details of Customers, Connection Types, Payments
- Admin can apply different level of filters on report of Bills, Tarrifs, Connection Types
- Admin can tracks the detailed information of Customers, Connections, Tarrifs, , Connection Types
