When to use ...

[Vladan Radovanovic]

Hi everyone, I am wondering if anyone wants to expand on when to use.
a) DOM Vs SAX
b) Attribute Vs Element
c) CSS Vs XSL
d) DTD Vs Schema
Actually, first one has been discussed many times but does anyone wants to discuss other three. If you know a document that is discussing these in more detail, I would appreciate if you point me to it.
Thanks
Vladan

[Mapraputa Is]

�DTD vs Schema� issue was raised before, and since I did not find any way to publish a table in this forum (with HTML tags off), I put a small table here: http://www.javaranch.com/xml/DTDvsSHEMA.htm
Today I copied two other tables from my preparation notes.
Attributes vs. Elements: http://www.javaranch.com/xml/ATTRvsELEM.htm
XSLT vs. CSS: http://www.javaranch.com/xml/XSLTvsCSS.htm
If somebody has something to add, please, tell it here!

[Vlad Patryshev]

And I actually have a collateral questions: okay, why is any DTD can be necessary in real life? Does it help extract or verify data? Not much, if ever.

[Ajith Kallambella]

Use of DTD ensures structural integrity of the XML document. When you receive XML files from external sources( which will eventually be the case when XML becomes the de-facto standard for data interchange ), your processing logic should not only validate the content, but also the structure.