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such as weather information, technology information,
links and other information.
B. Design and development the platform based on
Windows Live
This system will use Windows Live platform for
secondary development, including a lot of Microsoft's
technology [3]; design scheme is shown in Fig.2.
regions or markets, on the map, using different colors to
indicate the relationship between supply and demand,
when click on a specific region, it will use chart to
display the specific data, such as the Fig.4 shows.
Figure 2. system design
The windows live id platform support the interface of
Virtual Earth SDK to show the graphic information data,
and using Google earth to show the detail information,
because Google earth have a better graphics detail.
Realize unified identity authentication through Live ID
SDK interface, then user could login the system without
registering, but also can register in the system and login
in. Silverlight Stream SDK interface is used to access
heterogeneous information that support streaming. The
three key technologies have always been throughout the
business system applications.
C. Visual design on electronic agriculture information
The system uses virtual/google earth map information
and silverlight applications to realize information
visualization Design shows in Fig.3.
Figure 4. Display data through the map and silverlight chart
In the left may, the red region means demand exceeds
supply, blue means oversupply, green represents a
considerable supply and demand. When the user doubleclick
on these information points, when it will carry out
various forms of graphical charts to show in Fig.5.
Figure 5. Graphic chart showing
You can also through the drop-down menu to choose,
market, price, supply and demand, displaying mode, etc.
The selection can be demonstrated as shown in the
graphic charts.
Judging from what has been argued above, we have
come to see that the design support more interactive
behavior, rich the presentation tier logic. It allows the
user to achieve common dynamic data view by normal
clicking operation, reducing the interruption and waiting.
It is helpful for user to analysis the market, and improves
the experience significantly.
Ⅲ. WINDOWS LIVE PLATFORM AND
SILVERLIGHT FUNCTIONAL DESIGN
Figure 3. Informatization information visualization design
In the agriculture information visualization design,
the user through the drop-down menu that shows a certain
period of time or a particular market for a product or by
clicking on the virtual/google earth map information to
display the data [2] [3]. Among them, visualization of
agricultural product supply and demand, the different
A. The application summary of the Windows Live
platform in the business functions layer
In order to achieve the system’s target, simplifies the
operation, friendly system interface and participate
interactively, we use Windows Live platform for
secondary development, mainly contain three techniques,
Virtual Earth, Live ID, and Silverlight stream.
In addition to Internet access, there are cell phone
accesses, telephone, GPS positioning and so on. At the
same time, user could log in through the site registered,
MSN, QQ and so on in the same access channels.
The system use Windows Live ID, internet unified
authentication system, and it is simply to operation and
support interaction. It combines the system application
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