Chapter 12: Advanced topic Web 2.0 Contents Web 2.0 DOM AJAX RIA Web 2.0 "Web 2.0" refers to the second generation of web development and web design that facilities information sharing, interoperability, user-centered design collaboration on web. Web 2.0 does not have any technical update specifications Web 2.0 refers to cumulative changes in the ways software developers and end-users utilize the Web User create web contents Users can own the data and exercise control over that data Ex: social-networking sites, video-sharing sites, wikis, blogs, google maps… Web 2.0 vs. Web 1.0 Web 1.0 Web 2.0 collective dispersed in many places for individuals for society, collective wisdom provide content provide services and APIs readable writable communication between systems synchronization between systems the system includes structure, the content generated is precalculated auto-generate and auto-suggest Example of the move to Web 2.0 Web 1.0 --> Web 2.0 Ofoto --> Flickr Akamai --> BitTorrent mp3.com --> Napster (users share file) Britannica Online --> Wikipedia (users create content) personal websites --> blogging domain name speculation --> search engine optimization publishing --> participation DOM The Document Object Model (DOM) platform- and language-independent standard object model for representing HTML or XML documents DOM provides an API for querying, traversing and manipulating such documents It defines the logical structure of documents and the way a document is accessed and manipulated. programmers can build documents, navigate their structure, and add, modify, or delete elements and content of HTML and XML DOM uses objects to model elements of documents. XML presents data as documents, and the DOM may be used to manage this data. DOM is a model and is implemented in different language: Javascript, VBscript, Java… DOM The DOM model of a document resembles cl