HTML Online Tutorial Contents

Following are the posts for HTML online Tutorial. To learn everything about HTML, just read these posts: HTML Online Tutorial HTML TAGS (2) HTML BASICS (3) HTML ELEMENTS (4) HTML ATTRIBUTES (5) More »


XHTML stands for Extensible Hypertext Markup Language. It is also known as XML (Extensible Markup Language). It is a markup language. In XHTML, there are no predefined tags. The user defines the More »


In this tutorial, you learned: HTML Introduction HTML Tags HTML Basics HTML Elements HTML Attributes HTML Paragraphs HTML Headings HTML Formats HTML Image HTML Links HTML Lists HTML Frames HTML Table After More »


HTML Tables are used to arrange data in web pages. HTML allows the use of tables by <table>…</table> tags. Each row in HTML table is recognized by <tr>…</tr> tag. In each row More »


Nested frames example: For the following example to work, there are two other simple HTML files : “HMTL11e1 frame a.html” and “HMTL11e1 frame b.html”. your browser will divide your screeub half. The More »


Tag Archives: How XML is used?

How XML is used?

How XML is used?

In this post, we will explain the ways in which XHTML can be used and is proved fruitful. Though it is used basically for web development but mostly it is used to simplify data storage and sharing.

XML is used to separate data from HTML

If you are writing an HTML document with data in it and after sometime you might have to change the data, then you have to re write the code with new data in it or edit the original HMTL document. It will be time consuming task for you to edit the code each time you want to edit the data. To solve this issue we use XML. It can store the data in separate files. So that you can change the layout and display by using HTML and the data by using XML files. But what if you need to update the content of the web page, then you will have to use JavaScript code to read an external XML file.

XML is used to simplify the data and data transport

Think if you have to transmit the data from one system or database to another, the first issue that you will encounter is that the data on both systems or database is incompatible. XML is used to solve this issue. XML basically stores the data in simple plain text format. In this way the software or hardware does not have to worry about the way data is stored. The software and hardware is not depending on the stored data format. In this way, you can create the data which you can then share between different applications.

Now, how to transport the stored data has been a challenge for the web developers between these incompatible systems or databases. But if you exchange the data in XML files then the data can be read by any system or data base. Thus, XML has reduced the complexity of the data exchange over the internet.

XML can also be used to simplify the process of making changes in your hardware or software platforms

What if you need to upgrade to new hardware or software platforms. You would have to convert the large amount of data into new format or you could lose the data. By using XML you can store the data in simple text format. So that you do not have to convert the data from one format to another while upgrading the platforms, applications and browsers etc.

Through XML data is more accessible

If you store the data in separate XML file as a plain text, then many applications can access your data from both HTML document or XML files that you have created.  In other words, the data can be accessible from many devices like computer, voice machines, mobiles etc. It can also provide access to disable people or blind persons.

XML can be used to create new internet languages

Languages like XHTML, WAP & WML (markup languages for handheld devices)  and RSS etc are created using XML.

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