Data RuleML elements module. This is the XML Schema data module for RuleML. File: data_module.xsd Version: 0.87 Last Modification: 2004-08-06 This module declares the following data RuleML elements/attributes: * @type * @index * arg * Ind * Var The approach is modelled after that used in "Modularization of XHTML in XML Schema" WD [http://www.w3.org/TR/xhtml-m12n-schema/], which will soon be integrated with "Modularization of XHTML" (REC-xhtml-modularization-20010410) [http://www.w3.org/TR/xhtml-modularization/].