Entity References
Before discussing entity references, let's consider three situations:
You want to enter the > sign in the XML document. You will not be able to enter the > sign directly, because the XML parser will treat it as a markup, and the XML processor will take great offense when it finds a > hanging around in the XML document. You need a mechanism to escape the > character, so that it can be entered in the XML document.
Suppose you are creating an XML document describing car parts, and you need to specify the name of a product that is still under development. At the time you created the document, suppose the name of the product was Wonder Writer. After some time, the legal department figured out that there was a problem with the name ...
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