Physical data flow diagrams emphasize on how the process of the system is applied, while the flow chart logic data further emphasize the processes of what is contained in system.
Physical Data Flow Diagram (DADF)
DADF is more appropriately used to describe the existing system (old system). The emphasis of DADF is how the process-process of the system is applied (by way of what, by whom and where), including manual processes.To get an idea of how systems are implemented,
DADF must contain:
1. Manual processes are also described.
2. The name of the flow of data must contain sufficient detailed information
to show how users understand the working system the system.
3. Savings deposits of data can show non-computer.
4. The name of saving the data should indicate the type of application whether manually or computerized. Eg manually can show catatat books, desk workers. under way computerization example shows sequential files, database files.
5. The process should indicate the name of the processor, ie people, department, the computer system, or the name of the computer program access the process.
Logical Data Flow Diagram (DADL)
DADL is more appropriately used to describe a system that will proposed (new system). For computerized systems,DADL depiction shows only the needs of the system logically proposed, usually the processes that described only the processes in a computer course.
DADF is more appropriately used to describe the existing system (old system). The emphasis of DADF is how the process-process of the system is applied (by way of what, by whom and where), including manual processes.To get an idea of how systems are implemented,
DADF must contain:
1. Manual processes are also described.
2. The name of the flow of data must contain sufficient detailed information
to show how users understand the working system the system.
3. Savings deposits of data can show non-computer.
4. The name of saving the data should indicate the type of application whether manually or computerized. Eg manually can show catatat books, desk workers. under way computerization example shows sequential files, database files.
5. The process should indicate the name of the processor, ie people, department, the computer system, or the name of the computer program access the process.
Logical Data Flow Diagram (DADL)
DADL is more appropriately used to describe a system that will proposed (new system). For computerized systems,DADL depiction shows only the needs of the system logically proposed, usually the processes that described only the processes in a computer course.
Other differences, we can see from its function, as follows:
1. Physical Data Flow Diagram (DADF)
DADF is more appropriately used to describe the existing system (old system). The emphasis of DADF is how prosesproses of the system is applied (by way of what, by whom and where), including manual processes.
2. Logical Data Flow Diagram (DADL)
DADL is more appropriately used to describe the system to be proposed (new system). For computerized systems, DADL depiction of the process need only show that the proposed system is logically, these processes are usually described only in a computer processes only.
admin and operator differences :
- Admin: has the right to access all the existing modules in a program such as the "Sales and Stock of Goods (Small)" ..
- Operator: have access rights to any transaction module, while the reporting module, and master data maintenance items can not be accessed.
and if In pengoperasin applications require controllers to run the application. Admin and the operator acts as a controller of this alikasi.
Admin: as controller applications become equally important because the admin can fill (add, edit and Delete) data of employees in this apikasi. Admin can add and delete operators.
Operator: Task operators can operate this application to add, edit and delete data of employees and partners.
source by google
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