- Posted By: namita
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Posted By namita on July 8, 2017
Poll Survey System Data flow diagram is often used as a preliminary step to create an overview of the Poll without going into great detail, which can later be elaborated.it normally consists of overall application dataflow and processes of the Poll process. It contains all of the userflow and their entities such all the flow of Polls, Users, Votes, Survey, Results, Registration, Login All of the below diagrams has been used for the visualization of data processing and structured design of the Poll process and working flow.
Zero Level Data flow Diagram(0 Level DFD) of Poll Survey System :
This is the Zero Level DFD of Poll Survey System, where we have eloborated the high level process of Poll. It’s a basic overview of the whole Poll Survey System or process being analyzed or modeled. It’s designed to be an at-a-glance view of Results,Registration and Login showing the system as a single high-level process, with its relationship to external entities of Polls,Users and Votes. It should be easily understood by a wide audience, including Polls,Votes and Results In zero leve DFD of Poll Survey System, we have described the high level flow of the Poll system.High Level Entities and proccess flow of Poll Survey System:
- Managing all the Polls
- Managing all the Users
- Managing all the Votes
- Managing all the Survey
- Managing all the Results
- Managing all the Registration
- Managing all the Login
First Level Data flow Diagram(1st Level DFD) of Poll Survey System :
First Level DFD (1st Level) of Poll Survey 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 Poll Survey System system as a whole. It also identifies internal data stores of Login, Registration, Results, Survey, Votes that must be present in order for the Poll system to do its job, and shows the flow of data between the various parts of Polls, Votes, Registration, Login, Results 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 Poll.Main entities and output of First Level DFD (1st Level DFD):
- Processing Polls records and generate report of all Polls
- Processing Users records and generate report of all Users
- Processing Votes records and generate report of all Votes
- Processing Survey records and generate report of all Survey
- Processing Results records and generate report of all Results
- Processing Registration records and generate report of all Registration
- Processing Login records and generate report of all Login
Second Level Data flow Diagram(2nd Level DFD) of Poll Survey System :
DFD Level 2 then goes one step deeper into parts of Level 1 of Poll. It may require more functionalities of Poll to reach the necessary level of detail about the Poll functioning. First Level DFD (1st Level) of Poll Survey System shows how the system is divided into sub-systems (processes). The 2nd Level DFD contains more details of Login, Registration, Results, Survey, Votes, Users, Polls.Low level functionalities of Poll Survey System
- Admin logins to the system and manage all the functionalities of Poll Survey System
- Admin can add, edit, delete and view the records of Polls, Votes, Results, Login
- Admin can manage all the details of Users, Survey, Registration
- Admin can also generate reports of Polls, Users, Votes, Survey, Results, Registration
- Admin can search the details of Users, Results, Registration
- Admin can apply different level of filters on report of Polls, Survey, Results
- Admin can tracks the detailed information of Users, Votes, Survey, , Results
