- Posted By: namita
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Posted By namita on July 6, 2017
Login System Data flow diagram is often used as a preliminary step to create an overview of the Login without going into great detail, which can later be elaborated.it normally consists of overall application dataflow and processes of the Login process. It contains all of the userflow and their entities such all the flow of Username, Password, Register, Programmer, Change Password, Authentication, Login. All of the below diagrams has been used for the visualization of data processing and structured design of the Login process and working flow.
Zero Level Data flow Diagram(0 Level DFD) of Login System :
This is the Zero Level DFD of Login System, where we have eloborated the high level process of Login. It’s a basic overview of the whole Login System or process being analyzed or modeled. It’s designed to be an at-a-glance view of Change Password,Authentication and Login showing the system as a single high-level process, with its relationship to external entities of Username,Password and Register. It should be easily understood by a wide audience, including Username,Register and Change Password In zero leve DFD of Login System, we have described the high level flow of the Login system.High Level Entities and proccess flow of Login System:
- Managing all the Username
- Managing all the Password
- Managing all the Register
- Managing all the Programmer
- Managing all the Change Password
- Managing all the Authentication
- Managing all the Login
First Level Data flow Diagram(1st Level DFD) of Login System :
First Level DFD (1st Level) of Login 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 Login System system as a whole. It also identifies internal data stores of Login, Authentication, Change Password, Programmer, Register that must be present in order for the Login system to do its job, and shows the flow of data between the various parts of Username, Register, Authentication, Login, Change Password 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 Login.Main entities and output of First Level DFD (1st Level DFD):
- Processing Username records and generate report of all Username
- Processing Password records and generate report of all Password
- Processing Register records and generate report of all Register
- Processing Programmer records and generate report of all Programmer
- Processing Change Password records and generate report of all Change Password
- Processing Authentication records and generate report of all Authentication
- Processing Login records and generate report of all Login
Second Level Data flow Diagram(2nd Level DFD) of Login System :
DFD Level 2 then goes one step deeper into parts of Level 1 of Login. It may require more functionalities of Login to reach the necessary level of detail about the Login functioning. First Level DFD (1st Level) of Login System shows how the system is divided into sub-systems (processes). The 2nd Level DFD contains more details of Login, Authentication, Change Password, Programmer, Register, Password, Username.Low level functionalities of Login System
- Admin logins to the system and manage all the functionalities of Login System
- Admin can add, edit, delete and view the records of Username, Register, Change Password, Login
- Admin can manage all the details of Password, Programmer, Authentication
- Admin can also generate reports of Username, Password, Register, Programmer, Change Password, Authentication
- Admin can search the details of Password, Change Password, Authentication
- Admin can apply different level of filters on report of Username, Programmer, Change Password
- Admin can tracks the detailed information of Password, Register, Programmer, , Change Password
