What Does XML Data Island Mean?

An XML data island is an XML document residing within an HTML page. This avoids having to write code (i.e. a script) just to load the XML document, or having to load it through a tag. Client side scripts can directly access these XML data islands. These XML data islands can be bound to HTML elements also.

Techopedia Explains XML Data Island

In an HTML document, the XML element is written as: