Nouvelles Technologies Web

XML for eXtensible Markup Language, it's like HTML language allowing defining new markup. It is effectively about a language allowing structuring various documents thanks to markup.
Contrary to HTML, which is to be considered as a defined and fixed language (with a limited number of markup), XML can be considered as a metalanguage allowing to define the other languages, that is to define new markup allowing to describe the presentation of a text.
The power of XML lives in its capacity to be able to describe any domain of data thanks to its extensibility. It is going to allow to structure, to put the vocabulary and the syntax of the data which it is going to contain.
Really XML markup describes the contents rather than the presentation (contrary to HTML). So, XML allows separating the contents of the presentation that allows for example to post the same document on applications without requiring for all to create so many versions of the document which we require of representations!

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Web 2.0 is a new wide concept in its definition. That is why it is difficult to define it precisely. I am going to expose some quotations about Web 2.0 on French Web. “On one side, web 2.0 is seen as the fall of techniques towards services, on the other side it represents a new network of social interaction. In both cases nevertheless, it replaces the user and his relations with the others, rather than with the contents or the machines, in the center of the internet.”

“Web 2.0 is a sort of Spanish inn where each one can bring something or find what he wishes. Technological concept for someone, functional evolution of Web for the others.”

“Web 2.0 is a platform of innovation which makes the Web an operating system.” “Web is not any more a collection of sites, but a sort of operating system for Web applications. Eventually, the services of Web 2.0 could replace the office applications.”

“Web 2.0 is a term often used to indicate what is perceived as an important transition of the World Wide Web, crossing of a collection of Web sites in a separate computing platform, supplying Web applications to the users”.

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