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software seamlessly, so as to achieve the premise of a
unified authentication, sharing the multiple functions of
application platform cross-domain and on-line.
Windows Live ID is Microsoft's identity and
authentication services, there are more than 380 million
worldwide users have Windows Live ID. It means that
the system is integrated Windows Live ID authentication,
these users will become potential customers, the system
also develop a login system, when you use the Windows
live id to log in, the system's login authentication will be
synchronized automatically to log in.
The system also applied some other applications on
Windows Live platform, such as: Live Search, Live
Messenger and Live Space.
Virtual Earth in agricultural production and circulation
of information management applications
In recent years, with the developments of technical,
map service and globalization is more and more popular,
the system incorporates Microsoft's Virtual Earth, with a
2D/3D visual effects, display the distribution of
agricultural markets on the map, because the block of
information in China is poor in Virtual Earth, so the
system use Google Earth to make up for this shortcoming,
because the Google Earth in the localization is better that
it provides a wealth of geographic information. Taking
into account the unity of the platform, we still use Virtual
Earth in simple geographic information or large-scale
map displays, related to the specific area using Google
Earth, so as to achieve the best visual effect.
Virtual Earth and Google Earth combine the effects
shown in Fig.6.
Figure 6. Virtual Earth and Google Earth
Silverlight Streaming is apply in the system interface
and streaming media player
In streaming video, it occupies a great deal of server
resources. It can reduce the pressure on the server space
by using Silverlight Streaming, while the video streaming
speed has a very good guarantee. Microsoft provides 10G
storage space for Silverlight Streaming application, each
file upload increased to about 100M that satisfy large
files to upload, the video stream transmission rate is
1400kbps that satisfy the high-definition multimedia
video playback smooth, and it is beautiful and easy to use.
B. Silverlight apply in the expert-assisted
Silverlight mainly have two aspects of the application
in this system, one at the interface beautify, the other at
the expert-assisted that analysis the data through chart.
By using the technology of Silverlight to beautify the
interface. This system gives a fresh sense of the impact
and increase the human-machine interaction.
The system includes Silverlight applications and server
applications. Silverlight applications consist of user
Figure 7. Silverlight showing process
control and style. Presentation tier use asynchronous calls
through WCF to communicate with the server. Using the
WCF service reference and operation in accordance with
service agreement and data agreement to achieve
Silverlight applications and services of communication.
Data agreement disclosed the entity class structure which
is in the server application, and the data combines the
Silverlight application to dynamic showing out by using
chart or graphical image in the application tier. Above
process is shown in Fig.7.
Rich client development techniques have a highly
interactive, provides user with a higher and more
comprehensive interactive experience, greatly improve
user participation rate. Silverlight technology, the
important component of rich client development
techniques, can develop beautiful graphics and animation
function, and supports the interaction with the database.
It’s not only a simple graphical interface showing, but
also implementation the front-end computing power
required for the application, the data source through the
network to communicate with the background.
In the interface and search module, using Silverlight
magnificent style, with simple operations, the visual
effect is good for the purpose of display information.
Click the picture or information interface to flip the form
to convert [1]; search module search results also show a
non-traditional manner, the effect shown in Fig.8
Figure 8. The effect image
Examples: In the registration window, when you click
on the help information, the registration box to flip to the
back of the display help information, then click click-me
Button, and will be re-flip back.
Selecting parameters from Virtual/Google map and to
display through chart.
Technical Overview: To view the market price demand
or sales’ trend on a particular agricultural product, first to
click the matching icon, and click the matching link on
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