XML: Applying Order to Data

XML is a markup language that provides information about data in a document. This information is conveyed through a series of tags that are spread throughout the document. These tags are structured in a hierarchical format. This structure, in concert with the tags themselves, conveys meaning about the data.

For instance, information about a customer would include a name and address for the customer. But the customer may have more than one address: a home address and a billing address. The information about the customer could also include the customer's billing information and the customer's buying history. All of this information could very succinctly be described in a hierarchical fashion. The customer could represent ...

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