Build a Shopping Cart Application Using XForms
http://www-128.ibm.com/developerworks/edu/x-dw-x-xformsshopcart.html

Speicher, Steve K., Keith Wells, Jan J. Kratky and Kevin Kelly
IBM
2007

Abstract:

This tutorial focuses on key aspects of the W3C XForms 1.0 standard to produce a fully functional Web-based shopping cart. With this approach, the reader will get a good start at creating real-world applications with XForms, without having to learn the entire XForms specification.