Below is an example image Data Flow Diagram (DFD) of the Billing System on Regno Game Online :

DFD Level 0

DFD Level 1

DFD Level 2

Below is an example image Interface Design and Flowchart System from Billing System on Regno Game Online :

Interface Design

Flowchart System

Some of our system analysis done from the Billing System on Online Game is as follows :

Making Billing

Making Billing is the user is asked to choose which one to Billing used by the user. Billing type is the “Member” and “Prepaid”.

User Login

After choosing which one to use Billing, users will get a PIN [...]

Billing is automatic payment system that will change depending on time spent. Billing is also a system that is often used in online games or in a café. Because the costs listed will change at certain times according to the configuration done before.
The system must be made completely ready for any condition, so anything [...]

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