XML to XML as part of HTML which will provide detailed information such as temperature, air pressure in the HTML tag that defines the information expressed in the form where This information can take on many forms. Whether it's a table or text it depends on the maturity of the HTML and now with XML is a description of the contents of documents called Document Type Definition (DTD) to give details about the documents to be displayed. or hidden parts of certain documents which the DTD for the XML if the data is sent in the form of an XML DTD, it is known that a significant number of words that describe the characteristics of XML.