This paper presents XForm -- a proposal for a general and powerful mechanism for handling forms in XML. XForm defines form -- related constructs independent of any particular XML language and set of form controls. It defines the notion of formsheets as a mechanism for computing form values on the client, form values being arbitrary, typed XML documents. This enables a symmetical exchange of data between clients and servers which is useful for example for database and workflow applications. Formsheets can be written in a variety of languages -- we argue that the document transformation capabilities of XSL stylesheets make them an elegant choice.
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