| 摘要 |
A system for facilitating a sequence of events each comprising a multiplicity of purchases made by known users, the system comprising an on-site data bank recording an ID and a pre-paid balance value for each user expected to attend, a loader operative to set up for each event by loading into the data bank, IDs and pre-paid balance values, for users expected to attend, portable receptacles issued to each user and storing his ID and balance, e-cash filling stations incrementing the balance in the data bank, to reflect pre-payments made thereby, and mobile service provider workstations operative to read portable receptacles, to access the data bank according to the user ID of each portable receptacle, to enter into a transaction with a user if his balance accessed from the data bank is positive, and to decrement the transaction's value from his balance in the data bank.
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