294Patterns: Pervasive and Rich Device Access Solutions
Figure 13-8 Interaction diagram
13.3 Application design
This section describes the architecture and design decisions that went into
building our sample application. This sample application is an extension to the
Train Station Ticketing application and is targeted to run on mobile devices that
operate in an intermittently connected mode. The sample application must
therefore be able to operate in standalone mode, thereby allowing the conductor
to use the application when connectivity is not available.
There are various architectural decisions that went into designing this
application. These ...
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