XML language is a very important development in the information industry. Many people think that it will be the best platform for e-commerce development. Let's take a look at what kind of impact XML will have on the future.
The development of the Internet began in the 1980s. The first network language was the HTML language developed in 1985. In the proposed language, an organization named W3C was established. This organization is currently an important part of the development of the world-wide WWW. organization. After 96 years, this organization thought it necessary to develop the next language. So in 1998, it proposed the XML language architecture. I defined it as the second generation of the WWW. This second generation of the WWW will have an important period. That is an era of fully automated information. Why is an era of information automation? Because in the past era of HTML, to find information on the Internet, it needs to be handled manually, and XML can make the information on the web page automatically processed by the computer. It is as if the industrial revolution used machinery to replace humans. Now the development of the XML language is the information revolution. The completion.
XML is basically an electronic document language that is not a programming language, and is somewhat similar to an e-book. There are two uses of the file language: first, word processing, including Tex, Doc, PDF, etc.; first, data exchange, such as SGML, HTML, XML. I think that XML is very likely to unify all file languages, for example, now Office 2000, if you want to convert Word or Power Point files to web pages, have started to support the XML language.
The full name of XML is eXtensible Markup Language. Markup Language means Markup Language in computer language. It is similar to our general punctuation function. Its function is to facilitate reading, printing, and information exchange.
Although XML is the second generation of HTML language, its characteristics are very different from HTML. Basically, it is extended from SGML (Standard Generalized Markup Language), SGML is ISO electronic file language, and SGML is from 1969. The GML language developed by IBM.
This slide is an SGML formatted e-mail source .
This is a page written in XML, and on a comparison can be found, the use of XML can be used for personal habits to make use of their own label.
This is another example. Since the computer development has been to the present, there has been no language that belongs to Chinese language. However, by the appearance of XML language, it is possible to develop a file language that belongs to Chinese. The Chinese part uses only the Unicoad International Standard Code. That's not just Traditional Chinese, in the Simplified Chinese, Japanese, Korean, etc., dual-digit code countries, can also use XML to establish their own file language format.
In the current HTML page format, there are many limitations:
. HTML is only mentioned in the data.
. Browser standards are too far-fetched.
. When the search engine returns signals, it will be subject to considerable impact and affect the transmission rate.
. The plug-in function is difficult.
. It is not possible to specify the linked related pages.
. Can only be a one-way connection.
. The resources on the Internet are only available on the Internet.
The advantages of XML:
. Adopt an open platform.
. You can define your own file language control tags according to the user's work area.
. Any application can read web content.
XML and browser relations
. XML changes the internal structure of the browser in the current IE5.0 can read XML files,
. XML makes the "Hypertext" page an "Application" page. In the future, all applications will become applications in the browser . That is, in the browser of the XML language, files such as World, Excel, etc. can be read.
The current browser has only two roles. One is to translate HTML files, and the other is to display web pages. The new browser will have an advanced job after the XML file comes in. If you use your own defined XML tags, you need to use another program. There are two ways to write these programs. One is JAVA, and the other is ASP.
This is the internal structure of the browser. When an XML file is opened, another XML file is read in. After the two files are combined, the screen we see on the browser is generated.
In the past, the management of the Web was the management method of the File System. In the future, in the XML architecture, it will be a database management. Another important function is to increase the number of people who read web pages. In other words, in the past, web pages were read by people. After the development of XML, a group called “Machine Reader†was added, which means that the machine reads web content.
Reading web pages, the difference between current and future XML architectures is that XML has more than one Agents to help people look at web pages. In addition, a new database structure is also created in the back-end database, which is the structure of Hierarchical Data. Past databases are only housed in one company, and Hierarchical Data's structure can accommodate data from around the world.
The relationship between XML and E-Commerce
XML provides e-commerce best platform
. XML provides a uniform file format for the same application across companies
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