Electronic commerce, commonly known as e-commerce, commonly is defined as the buying and selling of products or services over electronic systems such as the Internet and other computer networks. However, it can include a much wider range of commercial electronic exchanges. It also includes other business transactions such as electronic funds transfer, supply chain management and logistics, e-marketing, electronic data interchange (EDI - the transfer of electronic documents and data from one computer system to another computer system), automated stock control management systems, and automated data collection systems.
E-commerce has grown dramatically in recent years because it allows firms to operate 24 hours a day in the global market. It typically uses the World Wide Web at least some point in the process.