Definition of: XML

XML: Extensible Markup Language It is used for defining data elements on a Web page and Application to Application Data. XML is similar in tag structure to HTML;Â HTML defines how tag elements are rendered, XML defines what Data those elements contain. While HTML uses predefined tags, XML allows tags to be authored and set up by the developer of the web application or web page. All data items can be identified simply by preset constructs set out by the developer, enabling Web site pages to-act like databases. Setting up a universalized language method for identifying data, XML supports company to companyData transfers and hassince gone on to be the industry standard format for electronic data transfer as well as Web services XML is a very portable language which can used from application to application and keeps data structure intact thru out the process.

XML the Format

XML has been heralded to the e-commerce world,as thing developed rapidly this was in fact only the first initial stage. The text-readable XML tags provide a simple data format, for the intelligent defining of these tags to serve business needs properly and everyone’s compliance or standardization to using the same tags determines the value of XML. Countless languages have been developed for vertical applications; so many in fact, that a industry standard language was developed to employ a standard for interoperability between them .

XML Documents Can Define

XML web pages are self defined,when XML schema is included , such as XML W3C Schema, are written in XML language and can self identify tags and their relationships to one another on the website page.

XML Compared to HTML

HTML, which uses a rather loose coding style and which is tolerant of coding errors, XML pages have to be well formed, which means they must comply with rigid rules. ETC: XML , XSLT, DTD, DOM, XHTML, HTML, SGML, SMIL and XML-RPC.

XML and HTML CODE

Below are examples of XML and HTML code tags. XML code defines data and content info, where HTML code deals with page layout and structure. XML defines “the information in the tag containers,” and HTML defines “the structure and layout.”

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XML CODE

<Name>Bill</Name>
<surName>Bailey</surName>
<nickname>Bill007</nickname>
<Birth>10-09-65</Birth>
<address>Example st, New Plymouth</address>
<interests>Golf, surfing, Internet, etc</interests>

HTML CODE

<font size=”2″>Bill</font>
<font size=”2″>Bailey</font >
<font size=”2″>Bill007</font>
<font size=”2″>10-09-65</font>
<font size=”2″>Example st, New Plymouth</font>
<font size=”2″>Golf, surfing, Internet, etc</font>