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Web 2.0, a popular word these days in the real world of web 2.0 internet.Apakah it? So many applications, "Web 2.0 wannabe" who label their products with "web 2.0". Is this a trend that is mushrooming like "epidemic fever" Facebook or Blackberry? This is a revolution or intermet usage. What is Web 2.0 ?

Web 2.0. This term is used to illustrate the application of new-generation Internet applications that revolutionize the way we use the Internet. All these applications lead us into a new era of Internet use that are different from the previous generation in the mid-1990s.

What Is Web 2.0 written by Tim O'Reilly describes the meaning and characteristics of Web 2.0 is. Incidentally he is the person who sparked the word Web 2.0. The characteristics of Web 2.0 include:

1. The Web as Platform
Web 2.0 applications using the Web (or Internet) as a platform. What is meant by platform? Platform here is where an application is started. The famous example is the Windows platform, where there are applications like Microsoft Office and Adobe Photoshop. Using the Internet as a platform means that applications are run directly over the Internet and not on one particular operating system. An example is Google which can be accessed from any operating system. Another example is Flickr which can also be accessed from any operating system.
Advantages are obvious, Web 2.0 applications are no longer restricted to operating systems like Windows. And we do not even need to install anything to use these applications!

2. Harnessing Collective Intelligence
Web 2.0 applications have unique characteristics, which many people take advantage of versatility of the collective. As a result comes very large knowledge base that results from the combined knowledge of many people. An obvious example is Wikipedia. Wikipedia is an online encyclopaedia that allows anyone to create and edit articles. The result is a major online encyclopedias are very complete article, even more complete than the commercial encyclopedias like Encarta! Another example is del.icio.us where all the people sharing the links they find interesting. As a result we can find the "jewels" in Web browsing combined results of thousands of people. The blogosphere is also an example of collective intelligence because everyone can write his blog on their own and each link with one another to form a knowledge network, similar to brain cells that are interrelated to one another in our brains.

3. Data is the Next Intel Inside
Power of Web 2.0 applications are located in the data. Internet applications that work is always supported by strong data base and unique. An example is Google, whose strength lies in data collection and management of web pages on the Internet. Another example is Amazon which has a data book that is not only incomplete, but also very rich with things like reviews, user ratings, links to other books, and so forth. This means that companies that excel are the companies that control the data.

4. End of the Software Release Cycle
Web 2.0 applications have different properties with applications on a platform of "old" like Windows. A Windows application is usually released every two or three years, such as Microsoft Office has a version in 1997, 2000, XP, and 2003. On the other hand, Web 2.0 applications are always being updated constantly because it is no longer a product but a service. Google for instance, is always being updated data and programs without having to wait a certain time.

5. Lightweight Programming Models
Web 2.0 applications using programming techniques that "light" such as AJAX and RSS. This allows others to reuse an application of Web 2.0 services in order to establish new services. An example is Google Maps which can be easily used by another person to form a new service. As a result emerged as HousingMaps services that combine Google Maps with Craigslist service. Such services, which combine the services of other applications, known as mashups.

6. Software Above the Level of a Single Device
Web 2.0 applications can run in an integrated manner through a variety of devices. An example is iTunes from Apple that runs in an integrated manner from the Internet server (in the form of online music stores), to computer users (in the form of the iTunes program), to mobile devices (in the form of iPod). In the future expected more applications that have these properties, such as Bill Gates demo at CES 2006 show the integration between the device exceptional.

7. Rich User Experiences
Web 2.0 applications have a rich user interface that even though running in the browser. Technologies such as AJAX enabled Internet applications have a fast response time and intuitive user interface similar to Windows applications are installed on our computers. An example is Gmail, email application from Google that has a revolutionary user interface. Another example is Google Maps again that even though running in the browser but it can provide rapid response when a user navigates through the map.

What is Web 2.0 ? Whether an application must have these seven characteristics to be called "Web 2.0? ? The answer is no. But more and more features that have meant the application was more "Web 2.0? ! And one more thing, although the examples given above came from the Google family, but actually there are many other Web 2.0 applications. On another occasion we will see examples of Web 2.0 applications that are

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