XML Tree Structure

XML tree structure start to a Parent root from top of the side. Every XML documents have only one root element.

XML was describe a tree structures of data. And tree structure have one root, child elements, branches, attributes, values. Following are simple XML structures.

<root>
  <element>
    <subelement>...</subelement>
  </element>
</root>

So upto now you know XML have ability to specify new tags and also create a nested tags to make a strict valid tree structure for exchanging data.

XML Tree Structure

Above visual tree structure assume our example base on this structure make one XML document including all that describe information.

<employee>
  <emp_info id="1">
    <name>
      <first_name>Opal</first_name>
      <middle_name>Venue</middle_name>
      <last_name>Kole</last_name>
    </name>
    <contact_info>
      <company_info>
        <comp_name>Odoo (formally OpenERP)</comp_name>
        <comp_location>
          <street>Tower-1, Infocity</street>
          <city>GH</city>
          <phone>000-478-1414</phone>
        </comp_location>
        <designation>Junior Engineer</designation>
      </company_info>
    <phone>000-987-4745</phone>
    <email>[email protected]</email>
    </contact_info>
  </emp_info>
</employee>

Run it...   »

Tree Structure Rules

Tag Name label for a section of data. Label must be relative to section data.

Section Element Section of data beginning with <tagname> and ending with </tagname>.
Example. <name> ... </name>

Nested Every element must be properly nested. Example: <name> <fist_name> ... </first_name> </name>

Attribute you can specify attribute name=value inside the starting tag of the element. You can specify several attributes.

Note Attributes specify for identify the elements.

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