You can also select a different schema to base the XML file on by selecting a
new schema from the targetSchema drop-down (see Figure 3.18).This would then
provide IntelliSense based on the schema selected.
You can also view XML documents from the Data mode.This presents the
document in a hierarchical structure. From this view, you can also add new nodes
and data to the document (see Figure 3.19).
Figure 3.18 Selecting a Target Schema
Figure 3.19 Viewing an XML Document in Data Mode
XML Web is actually said structural information of a standard text format, It is not complicated syntax and all-encompassing definition of the data. XML with HTML, SGML came from (standard general markup language). SGML is a Web long before the invention of the markers used to describe data files common language. But SGML is a huge and difficult to learn and use. Given this, people of the HTML language. But in recent years, with the application of the Web-depth, HTML in demand for a wide range of applications has been more pronounced. It was suggested that the direct use of SGML as a Web language. But SGML too large and still study with a dilemma aside, is the full realization of SGML browser is also extremely difficult. So W3C Web standardization organizations recommend the use of a streamlined version of SGML -- XML. XML and SGML, is a language used to define the yuan in other languages. Compared with SGML and XML specification less than a tenth of SGML standard, easy-to-read, neither is a label collection has no syntax of the new generation markup language.
XML advanced features
XML SGML inherited many characteristics, the first is scalability. XML allows users to create and use their own marking is not limited vocabulary of HTML tables. This is essential, Enterprises can use XML for e-commerce and supply chain integration applications define its own markup language, specific industries or even a definition of the field up to the special markup language, As the field of information sharing and data exchange.
Secondly is flexibility. HTML to further development, because it is the format, HTML and graphic user interface semantics mixed to the simultaneous development of these mixed together function is very difficult. And XML provides a structured way of data, enables the user interface separated from the structure of data. Therefore, Web users pursue many of the advanced functions in XML environment more easily attained.
The third is the descriptive. XML documents often contain a document type declaration, which is the XML document described. Not only can read XML documents, computers can handle. XML data indicated the truly independent of the application system and the data can reuse. XML is seen as a database file and the files of data.
In addition to these advanced features, XML is also concise. SGML it is only about 20% of the complex, but have the function of SGML about 80%. XML than the integrity of SGML is much simpler and easy to learn, easy-to-use and easy to achieve. In addition, XML has absorbed over the years people on the Web using HTML experience. XML support in almost all the world's major languages, and the text in different languages at the same mixed-use documentation, Application of XML software can handle such language in any combination. All of this will become the XML data in an open standards, such data independent of machine platform suppliers and programming languages. Network Computing It will inject new vitality, and information technology has brought new opportunities. Currently, many large companies and developers have started to use XML, B2B, including the many outstanding applications have confirmed that the XML will change the future creation of the application.
From 1998 onwards, the introduction of XML many network protocols, for the two in order to provide mutual communication software the standard method. Simple Object Access Protocol (SOAP) and XML-RPC standard of interactive software for the platform independent manner , a distributed computing environment opens the door. Almost all major software manufacturers will support SOAP. SOAP unprecedented rapid success of the software to improve the interoperability potential. Today, the Web revolution is on the rise, and SOAP is based on the agreement Service .
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