Modeling an electronic data interchange (EDI) document using extensible Markup Language (XML) at runtime. A plurality of structural elements is identified in the EDI document. A plurality of corresponding data values is identified from the identified plurality of structural elements in the EDI document. A plurality of annotations is generated for a plurality of rules included in the EDI document. The plurality of rules defines operations associated with the plurality of corresponding data values. The determined data values and the generated annotated is transformed into an XML schema corresponding to the EDI document. The XML schema is processed at runtime.