Document Summary
This white paper deals with Account-Based Ticketing and Calypso. Calypso was started at a time when telecom networks were notoriously unreliable, which accounts for the fact that it was then deemed indispensable that transactions should focus on the interface between smart media (then only Contactless Smartcards) and terminals. Technologies have matured; networks are becoming more persistent and reliable; open-payment systems are now a reality.In the light of these evolutions, it makes sense to analyse account-based ticketing in conjunction with Calypso to see what part Calypso could and should play and what evolutions are required, if any.
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