Conclusion & Resources

XHTML breaks new ground on the Web, giving authors a way to mix and match various XML-based languages and documents on their Web pages. It also provides a framework for nontraditional Web access devices -- from toasters to television sets -- to identify themselves and their capabilities to Web servers, pulling down only information that those devices can display. Thanks to XHTML, you can continue writing in the HTML you've come to know and love. You may just need to clean it up a bit. My guess is that XHTML 2.0 (see Resources) will specifically clean up HTML tags and their usage.

In conclusion, XHTML makes it easy to create documents that can be seen by all kinds of new devices. Additionally, with a little studying, you can create much more powerful pages than ever before. Lastly, XHTML is the bridge to XML -- the future language of the Internet.

• Review the W3C XHTML 1.0 specification, which defines a reformulation of HTML 4 as an XML 1.0 application, and three DTDs corresponding to the ones defined by HTML 4.
  
  
• Check out XHTML.org for news and information about XHTML.
  
  
• Read an introduction and overview of XHTML that includes an explanation of the differences between XHMTL and HTML 4.
  
  
• Find out more about XHTML Basic.
  
  
• Look at HTML Working Group Roadmap, which lays out a clear picture of future development in XHTML, including information on XHTML 2.0.
  
  
• View Encyclozine.com, an example of a site built in XHTML.
  
  
• To validate an XHTML page, try the W3C HTML Validation Service.
  
  
• Find more XML resources on the developerWorks XML technology zone.
  
  
• Find more Web resources on the developerWorks Web Architecture topic.
  
  
• Get IBM WebSphere Studio Application Developer, an easy-to-use, integrated development environment for building, testing, and deploying J2EE applications, including generating XML documents from DTDs and schemas.
  
  
• Find out how you can become an IBM Certified Developer in XML and related technologies.