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Graphical representation of data is a very hot topic. One only has to leaf through the pages of any journal to see the number of companies that are offering complex graphical packages that allow you to manipulate and visualize your data.

Most of them have a common problem: They require you to format your XML data to a specific standard that they can 'understand' before they can chart your data.

Laurence Moroney takes you through the steps of developing a business graphics server using Java. The server calls your data sources and parses the data according to XPath variables that you set up to create data series and categories. It then loads the data into the charting engine, an excellent open source package called JFreeChart. more