Sams Teach Yourself XML in 24 Hours, Third Edition

Chapter 7. Using XML Schema

	Any good strategy will seem ridiculous by the time it is implemented.
	--Scott Adams (cartoonist, creator of Dilbert)

Back in Hour 3, “Defining Data with DTD Schemas,” you learned how to describe a custom markup language using a DTD. Although DTDs can certainly get the job done, a more modern alternative is available for describing XML-based markup languages. This alternative is called XML Schema, and schemas developed using XML Schema are known as XSDs. Getting back to the Scott Adams quote, some XML developers have argued that maybe there is a shred of Dilbert ridiculousness to XML Schema given the complexity of the resulting code involved in creating an XSD. The W3C (World Wide Web Consortium) initially set out to ...