194Patterns: Pervasive and Rich Device Access Solutions
10.2 Architectural overview
This system is designed and implemented much like that of a standard Web
server or Web portal. Instead of a Web server, ITSO Railways would host and
serve this content from a pervasive access server. This server would be able to
determine what type of device is accessing the railway timetable application
based on the header information sent when the device attempts to connect to the
server. It would then be able to offer to the device content encoded in a markup
language supported by the requesting device.
In between the pervasive server and the Internet res
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