XForms—XML-powered Web forms—are set to replace HTML forms as the backbone of electronic commerce. XForms enable the creation and editing of structured XML content within a familiar Web browser environment, which is likely to play a key role in enabling simple browser-based access to Web services. XForms leverage the power of XML in modeling, collecting, and serializing user input. In this book, World Wide Web Consortium (W3C) XForms specification editor T. V. Raman explains how programmers can create durable and dependable feature-rich forms accessible from multiple platforms and devices and available in multiple languages and modes.