Electronic commerce, commonly written as e-commerce or eCommerce, is the trading or facilitation of trading to produces or service using computer networks such as the Internet Electronic Commerce draw on technologies such as mobile commerce, electronic funds transfer supply chain management, Internet marketing, online transection processing, electronic data interchange, inventory management systems, and automated data collection systems, modern electronic commerce typically uses the world wild web for a least one part of the transection's life cycle, although it may also use other technologies such as e-mail.