Overview The World Wide Web has changed the way that people Do business Communicate Share information The Web has evolved from a collection of Web sites to supporting Web applications Web 2.0 is characterized by interactive applications Chapter 1: The Web Becomes 2.0

Overview Chapter 1: The Web Becomes 2.0

How the Web Has Changed Early Web sites contained mostly text and small graphics Graphics were minimized to decrease the time it takes to load a page using a slower Internet connection Web sites were not always intuitive Chapter 1: The Web Becomes 2.0

How the Web Has Changed Newer Web sites provide users with a rich browsing experience Customizable layout Bold graphics Tabs Additional services Chapter 1: The Web Becomes 2.0

How the Web Has Changed Chapter 1: The Web Becomes 2.0

Social and Technological Developments that Led to Web 2.0 Web 2.0 is the result of several evolutions: Connectivity is available almost everywhere The personal computer evolved into an appliance Mobile phones are capable of accessing the World Wide Web Web browsers are easy-to-use Web-based applications were developed for many devices Web developers deploy new versions of software applications Society embraced technological changes Chapter 1: The Web Becomes 2.0

Social and Technological Developments that Led to Web 2.0 Chapter 1: The Web Becomes 2.0

Social and Technological Developments that Led to Web 2.0 In the 1990s, many new companies called dot-coms used the Web to conduct business Internet service providers (e.g. Email service) Amazon Priceline Many dot-coms went out of business by 2001 The Web became a platform for social networking, collaboration, and communication Chapter 1: The Web Becomes 2.0

Web 2.0 video Chapter 1: The Web Becomes 2.0

Features of Web 2.0 Applications Online conversations Blogs Wikis Sharing media (images, videos, audios) Collaboration Digg is a Web site that allows its readers to submit interesting news stories that they find online and digg, or vote for, the news stories that others submitted Chapter 1: The Web Becomes 2.0

Features of Web 2.0 Applications Chapter 1: The Web Becomes 2.0

Features of Web 2.0 Applications To participate in Web 2.0 applications, you likely will need a username and password A username is a unique code name that identifies you A password is associated with your username You should achieve greater password strength During the authentication process, the application verifies your credentials Chapter 1: The Web Becomes 2.0

Features of Web 2.0 Applications Chapter 1: The Web Becomes 2.0

The Web as a Platform for Running Applications Chapter 1: The Web Becomes 2.0

A Database-Backed Web Web 2.0 is often referred to as a read/write Web, or a database-backed Web Web applications read from or write to a database A Web server processes requests for Web pages sent over the Internet from a Web client Client-server model Chapter 1: The Web Becomes 2.0

An ordinary Web site Chapter 1: The Web Becomes 2.0

A Database-Backed Web Chapter 1: The Web Becomes 2.0

Software Accessible on Many Devices You can browse Web content from almost anywhere on almost any electronic device that has a screen Chapter 1: The Web Becomes 2.0

Software Accessible on Many Devices In order for a Web application to run on different devices, it is important that they are designed in such a way that separates the process of accessing information from the process of displaying that information Chapter 1: The Web Becomes 2.0

Software Accessible on Many Devices Chapter 1: The Web Becomes 2.0

Rich User Experience Technologies such as AJAX, Adobe Flash, and Microsoft Silverlight allow Web browsers to display dynamic content without waiting for previous communication with the Web server to complete Google Maps uses AJAX to allow the user to reposition a map or zoom in and out by dragging Only the map portion of the window will be updated Chapter 1: The Web Becomes 2.0

Rich User Experience Chapter 1: The Web Becomes 2.0

Rich User Experience Predictive look-ahead, or AutoComplete, provides suggestions of valid responses based on letters that a user enters in a text box Chapter 1: The Web Becomes 2.0

Rich User Experience Flash relies on standard Web technologies to provide an engaging user experience A browser plug-in is a software component that enables dynamic, animated display and functionality within a Web browser Flash Silverlight Many rich Internet applications allow users to create, stream, or view video Chapter 1: The Web Becomes 2.0

Rich User Experience Chapter 1: The Web Becomes 2.0