This Online shopping data flow diagram, also known as a level 0 data flow diagram, depicts the system's and external entities' information flows. Customers who visit the online bookstore to search for books and place orders are examples of external entities. The administrator updates the website and provides relevant information to the accounts team in the system module. The system-level 0 dataflow has elaborated the high-level banking process. The data flow diagram for online shopping shows how customers and administrators to process information at the online shopping system. In addition, the level 0 dataflow diagram demonstrates how third parties initiate money transfers to the bank system.
