Raul: Rdfa User Interface Language - A Data Processing Model For Web Applications

In this paper we introduce RaUL, the RDFa User Interface Language, a user interface markup ontology that is used to describe the structure of a web form as RDF statements. RaUL separates the markup of the control elements on a web form, the form model, from the data model that the form controls operate on. Form controls and the data model are connected via a data binding mechanism. The form elements include references to an RDF graph defining the data model. For the rendering of the instances of a RaUL model on the client-side we propose ActiveRaUL, a processor that generates XHTML+RDFa elements for displaying the model on the client.