Method of streaming size-constrained valid XML

Methods, systems, computer program products, and signal bearing mediums for streaming an eXtensible Markup Language (XML)-type document over a communication network are described. A sequence of commands are received and synchronously converted into XML-type fragments for assembling and streaming a single XML-type document for a mobile device in the communication network. The size of the XML-type document exceeds the size limit imposed by the available memory on the device but less than the size limit imposed by the transport layer of a communication network. A DTD of the XML-type document can be broken up into logically independent elements. The XML-type fragments are assembled in a buffer that is constrained to be smaller in size than the size constraint of the transport layer of the communication network. Periodically, the assembled fragments are flushed from the buffer to the transport layer of the communication network dependent upon the DTD of the XML-type document without a limitation on the size of a message to communicate the XML-type document over the transport layer without loss of information.