Rules for a well-formed XML document

Follow these syntax rules when creating an XML document:

• Root element contains all other elements

• Elements and subelements are properly nested:

• <A><B></B></A> not <A><B></A></B>

• All elements have start and close tags:

• <object>Router</object> as opposed to <object>Router

• Start and close tags should match cases:

• <B>word</B> not <B>word</b>

• Attribute declaration values should be in single or double quotes:

• <attribute name="Customer 1"> not

• <attribute name=Customer 1>