XML

XML (Extensible Markup Language) XML is designed to improve the functionality of the Web by providing more flexible and adaptable information identification. It is called extensible because it is not a fixed format like HTML (a single, predefined markup language). Instead, XML is actually a `meta language' - a language for describing other languages - which lets you design your own customized markup languages for limitless different types of documents. XML can do this because it's written in SGML, the international standard meta language for text markup systems.

Model

advantages

Some advantages using XML To make it easy and straightforward to use SGML on the Web
Easy to define document types
Easy to author and manage SGML-defined documents
Easy to transmit and share documents across the Web.
eBooks are much more flexible and dynamic, allowing the data to become more defined, searchable, and controlled.
The client can be assured that the investment into these technologies won't become redundant or obsolete within a few years.
Utilizing these technologies will provide the client with a more secure and controlled data management solution.

Wireless Future

XML the Wireless Future for those who argue that XML is too verbose for wireless apps, see what standards and technologies we can expect down the road

Wireless

Wireless applications and wireless internetexecute on wireless devices, which are normally small handheld devices, and these have limitations. The most obvious limitation is that handheld devices are small, and a small display cannot display the same amount of information (at the same time) as a large one. Small devices usually also have a limited amount of memory available, which makes it impossible to incorporate all the fine features that are part of a full-fledged desktop computer. Therefore, technologies such as Java 2 Micro Edition (J2ME), Connected Limited Device Configuration (CLDC), and Mobile Information Device Profile (MIDP) have been developed.
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SGML

SGML is very large, powerful, and complex. It has been in heavy industrial and commercial use for over a decade, and there is a significant body of expertise and software to go with it. XML is a lightweight cut-down version of SGML, which keeps enough of its functionality to make it useful but removes all the optional features which make SGML too complex to program in a Web environment. XML is an abbreviated version of SGML, to make it easier for you to define your own document types, and to make it easier for programmers to write programs to handle them.

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