This template is a data flow diagram for an e - commerce system. The central actor is the "customer". When starting, a new customer can initiate the "1.0 sign - up" process, saving customer - related data. Existing customers can proceed to "2.0 log in". Post - login, data related to "show product" (3.0) is accessed and presented to the customer. The customer can also generate a "4.0 search" request, which fetches relevant product data. Once a product is selected, the "5.0 buy product" action occurs, triggering a series of data exchanges for payment and order processing. Finally, the "7.0 confirm" step solidifies the transaction. The "6.0 evolution" step likely involves data related to product improvement or customer feedback. The diagram clearly maps out the data flow and interactions, aiding in understanding and designing the e - commerce system's functionality.
