a/Extensible Markup Language evangelist.The tags created in the Extensible Markup Language resemble the tags created in the HyperText Markup Language used today to create Web pages. There are two important differences, however: Extensible Markup Language tags separate content from presentation, and Extensible Markup Language is extensible - that is, it allows for the creation of new tags for unforeseen purposes. Thus, you can “create” the language to fit the needs of your application. Both HyperText Markup Language tags and Extensible Markup Language tags enclose a keyword or character in angle brackets like this: *I*Sample HyperText Markup Language tags*/I*In the example above, the HyperText Markup Language tag *I* means the following text “Sample HyperText Markup Language tag” should appear in Italics. The */I* tag turns the italics off and returns the font format to the previous type style. Extensible Markup Language tags follow the same syntax format, enclosing content between “on” and “off” type of tags, but the meaning is very different. While HyperText Markup Language tags generally indicate only how the content should appear, Extensible Markup Language tags indicate what the content means. Content therefor grows more accessible to different kinds of software and less dependent on a specific output device. How is the Extensible Markup Language generated document formatted for display? I’ll get to that shortly.The value of the information discussed in the above paragraph is apparent when you look at the differences in how HyperText Markup Language and Extensible Markup Language might be used to label some information on the World Wide Web. The following is an example of a HyperText Markup Language code for product pricing of college books: *H3* Sale Price-The Architecture of Computer Hardware and System Software by Irv Englander $135.00*/H3* *I* (Suggested retai...
