Related Works

In order to understand the other's platform with our differences and know what we should take care when we implement such a platform.

The following sections we will introduce several other related applications platform.

And also provides Html 5 [20] introduction to understand how we use the next generation browser and the possibility of making web application

2.4.1 Yahoo! Go

When an Internet company wants to provide mobile services, he must face a problem that is a large number of mobile phone operating system, and different brands of cell phones have their specific functions, or different browser set in numerous mobile phones. In order to solve this problem, Yahoo! Go offers an environment (a Java-based phone application) for the current site can be simple and easy for operators

to put their services on mobile phones, and not worry about what underlying technology used in the background. But to achieve this goal, Yahoo! may own a lot of compatibility issues to overcome. Actually, Yahoo! announced in late December 2009 that Yahoo! Go along with technical support for it would be discontinued on January 12, 2010. About January 22nd, Yahoo! Go no longer works.

Yahoo! Go aims to their application in each mobile phone can run normally, it must be compatible with the operating system of various mobile phones. He must be for different mobile phones or browsers to be adjusted to ensure that the function is normal and display successfully. As long as the phone supports Yahoo mobile developer platform, website operators just follow the development of specifications in accordance with written Widget; it will be able to provide existing web services for mobile phone users who have installed Yahoo! Go software.

Figure 2-8 Yahoo! Go software

Yahoo! GO has a lot of services covered the basic news browse, read mail, weather forecasts, even to view the latest Flickr photos. Other features include Yahoo search engine, we can easily search for other sites, as long as input the site name, for

example, enter: 01, mobile search will bring Mobile01 website link, click on the link, we can immediately visit the site; Other built-in features include Yahoo News, entertainment, finance, weather, sports, it would be a RSS receive service, not to endure lengthy downloads or start connections, we can update at any time the latest current affairs of life.

Yahoo! Go uses Widget for the conceptual design. Widget is designed to immediately access the site resources. Furthermore, taking into account the small window, it is designed to let user reading comfortable. The developers can use Yahoo! Widget tool produces self-developed Widget. Yahoo! Widget is a technology using a JavaScript open source platform, to support Windows and MacOS X operating system. Yahoo Widget tool provides thousands of desktop mini-applications, these tools in the Yahoo Widget platform to run mini-applications, called the Widget tool. By these Widget tools, users can link to Yahoo's web services to obtain all the required personal information.

Yahoo! Go developed to version 3.0, open advertiser embedded advertising, and to provide external developers to use Yahoo's Widgets functionality, design more diverse content for mobile users, so that external developers can put into the keyword advertising to create revenue.

2.4.2 Web Page Tailoring Tool

As mobile devices become more popular, the opportunity to use them to go to the Internet becomes more and more. However, the vast majority of pages are designed

screen size limit, the user might always have to scroll in very inconvenient way.

Although some websites specifically for mobile devices provide an additional mobile version, but through this approach, Web developers should spend more time to design and maintain the same sites; In addition, some commercial web pages that will let original content of the page to re-layout, for example: let Web into long strips in order to remove the scroll trouble. However, the re-layout the web pages may not be able to allow users to quickly find the desired information, because still there is some unimportant information.

Figure 2-9: Page Tailor in Web browser

In view of this, Chi-Yang Tsa from National Chiao Tung University [21] creates a web system to help users to get what portion they want to read. The system can determine Web pages according to users’ personal preferences. And it facilitates the mobile user to read the small screen.

The main principle is to allow users to use JavaScript to select what part they want to read. As the Dom tree [22] of html can be expressed as an internal way, so this tool will be transform the areas user selected into a Dom tree path, and save to the database.

When users actually access, they will set up a Muffin server [23] of this system as a proxy server. This server is a World Wide Web filtering system written entirely in Java that can filter any HTTP data sent and received by user's Web browser. This system is rewritten muffin server and according to the Dom tree path which is saved in the database as a basis for filter data. Users only set a range once and the other pages in the same path of the web can be made by the same set to do filter.

2.4.3 HTML 5

HTML 5 is a new network standard, aiming to replace the existing HTML 4.01, XHTML 1.0 and DOM Level 2 HTML standards. It hopes to reduce the need for browser plug-in-based rich internet application, such as Adobe Flash, Microsoft Silverlight [24], and Sun JavaFX [25] needs.

HTML 5 provides some new elements and attributes to reflect modern usage of the typical Web site. Some of them are technically similar <div> and <span> label, but has some meaning, such as <nav> (navigation block) and <footer>. The tags will help search engines to index order, small screen devices and the visually impaired. It provides new functionality for other new requirements, such as <audio> and <video>

tag. Some HTML 4 tags will be removed, including the tags used solely for display, such as <font> and <center>, because they have been replaced by CSS.

Currently Firefox, Google Chrome, Opera and Safari (version 4 and above) has supported HTML5 technology.

Here is a list of the APIs of HTML 5:

• The Contacts API provides a local SQLite database as the core, this way, people in the Client-side can have a simple SQL database for information, so let the front page to access it.

 Web Storage:

A Name-Value-based data storage area used for HTML & JavaScript, the information stored there will continue to be a local database file, even turn off the Browser will not disappear, it can be used as a storage area similar Cookie.