8.1 INTRODUCTION
The web is enabling users to talk to applications. But, an equally important facet is on how applications talk to other applications. When they communicate, what is one single format that is popularly used, irrespective of whatever be the content that is being exchanged? The answer to this is XML which stands for Extensible Markup Language. It is a standardized form of data to store, manipulate and transport over the internet. Though XML is a single format, there are different forms that can be used. For example purchase orders can be communicated in B2B over XML. Applications themselves use XML in exchanging configuration information, for instance. The most common usage of XML is XHTML, which has been mentioned in the chapter ...
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