- Posted By: namita
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Posted By namita on July 5, 2017
Internet Chat System Data flow diagram is often used as a preliminary step to create an overview of the Internet without going into great detail, which can later be elaborated.it normally consists of overall application dataflow and processes of the Internet process. It contains all of the userflow and their entities such all the flow of Indivisuals, Groups, Conference, Records, Notifications, Status, Login. All of the below diagrams has been used for the visualization of data processing and structured design of the Internet process and working flow.
Zero Level Data flow Diagram(0 Level DFD) of Internet Chat System :
This is the Zero Level DFD of Internet Chat System, where we have eloborated the high level process of Internet. It’s a basic overview of the whole Internet Chat System or process being analyzed or modeled. It’s designed to be an at-a-glance view of Notifications,Status and Login showing the system as a single high-level process, with its relationship to external entities of Indivisuals,Groups and Conference. It should be easily understood by a wide audience, including Indivisuals,Conference and Notifications In zero leve DFD of Internet Chat System, we have described the high level flow of the Internet system.High Level Entities and proccess flow of Internet Chat System:
- Managing all the Indivisuals
- Managing all the Groups
- Managing all the Conference
- Managing all the Records
- Managing all the Notifications
- Managing all the Status
- Managing all the Login
First Level Data flow Diagram(1st Level DFD) of Internet Chat System :
First Level DFD (1st Level) of Internet Chat 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 Internet Chat System system as a whole. It also identifies internal data stores of Login, Status, Notifications, Records, Conference that must be present in order for the Internet system to do its job, and shows the flow of data between the various parts of Indivisuals, Conference, Status, Login, Notifications 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 Internet.Main entities and output of First Level DFD (1st Level DFD):
- Processing Indivisuals records and generate report of all Indivisuals
- Processing Groups records and generate report of all Groups
- Processing Conference records and generate report of all Conference
- Processing Records records and generate report of all Records
- Processing Notifications records and generate report of all Notifications
- Processing Status records and generate report of all Status
- Processing Login records and generate report of all Login
Second Level Data flow Diagram(2nd Level DFD) of Internet Chat System :
DFD Level 2 then goes one step deeper into parts of Level 1 of Internet. It may require more functionalities of Internet to reach the necessary level of detail about the Internet functioning. First Level DFD (1st Level) of Internet Chat System shows how the system is divided into sub-systems (processes). The 2nd Level DFD contains more details of Login, Status, Notifications, Records, Conference, Groups, Indivisuals.Low level functionalities of Internet Chat System
- Admin logins to the system and manage all the functionalities of Internet Chat System
- Admin can add, edit, delete and view the records of Indivisuals, Conference, Notifications, Login
- Admin can manage all the details of Groups, Records, Status
- Admin can also generate reports of Indivisuals, Groups, Conference, Records, Notifications, Status
- Admin can search the details of Groups, Notifications, Status
- Admin can apply different level of filters on report of Indivisuals, Records, Notifications
- Admin can tracks the detailed information of Groups, Conference, Records, , Notifications
