 in conformance with the
syntactic rules described in a Document Type Definition (DTD) or a schema document. [Computer and Information
Sciences] 
n., A digital document encoded using Standard Generalized Markup Language (SGML) in conformance with the syntactic rules
 described in a Document Type Definition (DTD) or a schema document. [Computer and Information Sciences] 
n., The name or special mark of a person, affixed by the person’s hand or by its authorized agent on a document for the
purpose of taking r