Electronic commerce, commonly known as E-commerce or e-commerce, is trading in products or services conducted via computer networks such as the Internet. Electronic commerce draws on technologies such as mobile commerce, electronic funds transfer, supply chain management, Internet marketing, online transaction processing, electronic data interchange (EDI), inventory management systems, and automated data collection systems. Modern electronic commerce typically uses the World Wide Web at least at one point in the transaction's life cycle, although it may encompass a wider range of technologies such as e-mail, mobile devices, social media, and telephones as well.