XForms is the next generation of forms technology from the W3C and is looking to replace HTML forms. XForms is an XML vocabulary that can be used within other XML vocabularies such as XHTML. XForms is designed to separate the purpose of your form (XForm Model) from the data (XForm Instance) and the presentation (XForm UI). This allows you to bind alternative presentation technologies such as WML and XHTML to the forms you create.

We will explore the design of XForms, concentrating on the XForms model. We will look at using the XForms instance to define the structure of your data as well as provide default values. We will then look at including that form in XHTML.