Abstract: The invention relates to a method of processing data from a travel ticket, whereby the data stored in the ticket comprise contract instances, i.e. data relating to the use of a transport service. The inventive method comprising the following steps consisting in: reading a pre-selection file which contains a record of each stored contract instance, each record comprising at least one selection field and a pointer to reference a contract instance; and preparing a pre-selection list from the data read in the pre-selection file, said pre-selection list referencing the stored contract instances by order of preference. In this way, the contract instance data can be read in said order of preference, thereby accelerating processing speed since it is not necessary for all of the contract instance data to be read.

Abstract: A method of and system for executing an action on a portable data storage device via a network, the method comprising the steps of: requesting, at a remote terminal, an action to be executed on the portable data storage device; transmitting the request from the remote terminal to a central server via the network; storing data representative of the action requested in a memory of the central server; transmitting data representative of the action to one or more portable data storage interface devices; presenting the portable data storage device to a portable data storage interface device of the one or more data storage interface devices; executing the action on the portable data storage memory device.