Web Technologies - Introductions - II

Part – II Web Standards –

1. Current Standard language for structural markup language

A) Structural Layer

a) XHTML 1.0 (Extensible Hypertext Markup Language) and XHTML 1.1
- XHTML 1.0 is simply HTML 4.01 rewritten according to the stricter syntax rules of XML. XHTML 1.1 finaly does away with depreciated and legacy elements and attribute and has been modularized o make future expansions easier. XHTML 2.0 is currently in development . The last version of HTML was 4.01 , which is still universally supported by today’s browsers ( *********** - To Check)


b) XML 1.0 – (Extensible Markup Language )

- XML is a set of rules for creating new markup language. It allows developers to create custom tag sets for specal uses

B) Presentation Layer
- Cascading Style Sheet (CSS) Level 1 (Contains rules that control the display of text , margins , borders,
- Cascading Style Sheet (CSS) Level 2 .1- This recommendation is still inconsistent for current browsers
- Detailed Cascading Style Sheet (CSS) standards can be get it from www.w3c.org/style/css
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c) Behavioral layers – Scripting and Programming of the behavior layer adds interactively and dynamic efforts to a site

a) Object Models –
- DOM (Document Object Model – Level 1 –(Core) – allows scripts and applications to access and update the content , structure , and style of a document by formally naming each part of the document , its attributes , and how that object may be manipulated .

- DOCUMENT OBJECT MODEL (1.0) = Covers core HTML and XML documents as well as document navigation and manipulations - www.w3c.org/TR/REC-DOM-Level-1

- DOM Level 2.0 – Level 2.0 includes a style sheet object model , making it possible to manipulate style information

- Scripting –

a) Netscape has introduced its web scripting language (JavaScript) with its navigator 2.0 browsers . It was originally called as “Livescript” but later it was co-branded by Sun , JAVA

1.2.4 – Other XML based Technologies

XML is a meta – language used to create other markup language and applications

Part – II Web Standards -