Conclusion

Abstract

In this book, the technology behind building Web applications was covered. The fundamental areas discussed include data markup, networking, and information retrieval. Data markup plays an important part in the development of Web technology. With a vast amount of information being exchanged across the Web, it is important that the data be structured and be transformable from one format to another. We have presented the extensible Markup Language (XML) and the extensible Style Sheets (XSL) as methods of achieving the above objectives. The advantage of the XML approach is the formal definition of the structure of the document either using a DTD or a Schema, which allows syntactic validation of the document. The Hyper Text Markup Language (HTML) originated from SGML, but has been streamlined into XML technology and later versions of HTML (XHTML) have document structures formally defined using a DTD or Schema, thus providing a common language for publishing information on the Web. Style sheets provide a mechanism of defining the presentation layer for the corresponding HTML document. XSL also serves the purpose of transforming data representations from one format to another. This is especially useful in business to business (B2B) exchange of information, in addition to presentation of XML documents.

I leave no trace of wings in the air, but I am glad I have had my flight