Methods and systems are disclosed which relate to accessing travel services via interface surfaces printed with information and coded data. The coded data, encoded visibly or invisibly, may be queried by an appropriate sensing device. The sensing device communicates with a computer system. Together, the interface surfaces, sensing device and computer system are capable of effecting travel service transactions over a network.

 
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< Method of creating data streams for user-specific usage data gathering systems

< Method for enabling a compiler or interpreter to use identifiers found at run time in a map container object in a manner similar or identical to identifiers declared at compile time

> Dynamic registration of dynamically generated code and corresponding unwind information

> Method of making photonic devices with SOG interlayer
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