Example of DFD for Online Store (Data Flow Diagram)

This deployment flow chart sample shows the trading process flow.
"Trade, also called goods exchange economy, is to transfer the ownership of goods from one person or entity to another by getting something in exchange from the buyer. Trade is sometimes loosely called commerce or financial transaction or barter. A network that allows trade is called a market. ...
Modern traders ... generally negotiate through a medium of exchange, such as money. As a result, buying can be separated from selling, or earning. ...
Retail trade consists of the sale of goods or merchandise from a very fixed location, such as a department store, boutique or kiosk, or by mail, in small or individual lots for direct consumption by the purchaser. Wholesale trade is defined as the sale of goods that are sold merchandise to retailers, to industrial, commercial, institutional, or other professional business users, or to other wholesalers and related subordinated services." [Trade. Wikipedia]
The swim lane diagram example "Deployment flowchart - Trading process diagram" was created using the ConceptDraw PRO diagramming and vector drawing software extended with the Cross-Functional Flowcharts solution from the Business Processes area of ConceptDraw Solution Park.