Differences Between HTML vs XML
Computers use languages to communicate just like people do. The way computer communicates with the internet is through a computer language which is the content of this HTML vs XML article. As usual, it’s better to clear some terminology before we proceed into details of the HTML vs XML article.
Terms
- HYPER-TEXT is a process of linking objects to each other so that when one object is clicked the linked object can be viewed or used accordingly (means as per the action is taken).
- MARKUP literally means notations or symbols that are used to correct in making up text and indicate how the texts should be displayed. Some common notations or symbols used are (<,>, ^, /,?). Mark-ups refer to the sequences of characters or other symbols that can be inserted at certain places in a text file to indicate how a file should look when it is printed or displayed.
- EXTENSIBLE means something capable of being stretched out or extended. In information technology, extensible refers to a program or programming language that is designed so that its users and developers can expand or add to its capabilities.
HTML vs XML Infographics
Below is the top 11 difference between HTML vs XML
Key Differences Between HTML vs XML
Before we go ahead with the difference between HTML and XML one should know there are some similarities between them. First of all, they both HTML vs XML are languages and are used for the web. Both XML vs HTML are markup languages. Tags are the building blogs for both XML vs HTML. The last interesting similarities both share is they both are originated from SGML (Standardized Markup Language)
Let’s see a basic code sample under both HTML and XML. This will give a clear understanding of the elements, structure and tags elements used in it.
HTML
<html> ————————-this is the opening tag
<head>
</head>
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<body>
</body>
</html>———————–this is the closing tag(notice that for each closed tags a slash symbol is used which is compulsory while closing the tags in a proper way). There is no case sensitive in the coding part.
XML
<?xml version=”1.0” encoding=”UFT-8”?>
<contact-information>
<name> EDUCBA <//name>
<designation> Organization </designation>
<address> Mumbai </address>
<contact> 987654321 </contact>
</contact-information>
Note: Information in RED is Mark-up and information in black is ordinary text.
- XML and XHTML have an infinite number of possible elements, whereas HTML follows a strict set of elements which are predefined.
- One more interesting relationship between these two shares. One can be a subset of other whereas other can’t be a superset of first. All HTML can be XML, but the reverse does not hold value unless it uses HTML elements and served as XHTML.
- An XML element does not convey meanings and its parsers won’t act on those elements whereas on the other hand HTML elements by their use convey meaning or browser-instruction.
- XML attributes have to be quoted and can’t be value-less. In certain conditions, HTML attributes need quotes and can omit redundant values unless it’s XHTML, in which case it assumes XML attribute rules.
Head To Head Comparison Between HTML vs XML
Below is the top most comparison between HTML vs XML
| Basis of Comparison Between HTML vs XML | HTML | XML |
| Filename Extension | .html, .htm | .xml
|
| Development | W3C and WHATWG | W3C(Worldwide Web Consortium) |
| Initial and Current release | Initial release in 1993. The latest release (14th Dec 2017). | No such details available. Has a stable release. |
| Layout | HTML is not case sensitive. A user can use fonts according to his wish | This is not true for XML as it follows a Case sensitive format of coding. |
| Objective | HTML purely used to display the data and focuses on how data looks. | XML being software and hardware independent tool used to transport and store the data. It mainly focuses on what the data is. |
| Category | HTML is a markup language in itself. | XML provides a framework so that the markup languages can be defined. |
|
Layer |
HTML is a presentation language |
XML is neither a presentation nor a programming language |
| Tags Flexibility | In HTML there are pre-defined tags. These cannot be overwritten or changed by users. | In the case of XML, the users can define their tags as per their convenience and usage. This gives the flexibility to its user. |
| Script | In HTML normally there are open and closed tags. This is not a rule to follow. One can even work without having a close tag. | In XML, it is mandatory to have closing tags. |
| Tools | Notepad, Notepad++ are some of the common free tool | XML editors (generally used) |
| Whitespaces | HTML does not preserve whitespaces. Whitespaces mean if one character or white space is there, or wide gaps are present between the sentences, HTML will then take it as a single character blank space. | XML preserves the whitespace. |
Conclusion – HTML vs XML
We have seen that how these technologies are the building blocks for web development. The article so far has covered terms related to HTML and XML – comparing the usefulness and how one stands on other in terms of usage. We have also seen their proper syntax and how tagging differs between them. HTML vs XML are actually large topics but I must say that the readers those who have this far will definitely going to learn the technicalities as per requirement. The best part about these web development techniques is the availability of tools, which are easy to get and practice.
Both of these are accepted worldwide for web development and are W3C accepted. Immense possibilities are there for HTML when it comes to formatting text, adding a graphics, creating a link, input forms, frames and tables and the same goes with the XML with its storage and transportation capabilities. These are then used by the browsers to display the information to people all across the globe.
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