A user interface may be generated from an XML schema. For a data object definition in an XML schema, a user interface object may be defined, and a memory store for the data object may be created and bound to the user interface object. The user interface component may be defined in the XML schema, as a separate file, or within an XML document. A user interface object may be selected based on the data type, and various limits and display mechanisms and input devices may be configured based on the schema. When bound, the data stored in the memory store may be reflected in the user interface component, and changes to the user interface component may be reflected in the memory store.