Method for paying for a service offered by means of a data network
First Claim
1. A method for acquiring a service offered by a service provider over a data network on presentation of a cash card having data stored thereon, said data corresponding to money in electronic form, by carrying out first a prenegotiation phase to order the service and subsequently a transaction phase including a compensation phase to make a contribution for delivery of the service, the service being ordered by means of a user end system that includes the cash card, from the service provider, the service provider thereupon calls a clearing center which subsequently enters into a data exchange with the user end system, to call for there from a necessary contribution in the form of certain data required for acquisition of the service, the method comprising steps in the prenegotiation phase of:
- at the user end system, determining an individual identifier of the cash card, for use in the transaction phase that includes the data exchange that calls for the contribution in order to homogenously link the ordering process with the following compensation process;
at the user end system, sending a first prenegotiation message including the identifier to the clearing center; and
at the user end system, receiving the identifier back there from the clearing center with a second prenegotiation message for acknowledgement;
wherein the compensation phase further comprises using the identifier to effect a data exchange in which the money in electronic form stored on the cash card is reduced by the amount to be paid and a corresponding amount is credited to the clearing center.
1 Assignment
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Accused Products
Abstract
A method is proposed for acquiring a service sold over a data network (20) against presentation of a transaction medium (2). The service is ordered by a user (1) by a user end system (10) from a service provider (40). The latter calls in a clearing center (30) which enters into a data exchange with the transaction medium (2) to call for therefrom a necessary contribution in the form of certain data assumed for acquisition of the service. The ordering process and the data exchange with the transaction medium (2) for calling for the contribution are linked via an identifier (KM) associated with the transaction medium (2), the identifier being determined by the user end system (10) and used to secure the ordering process and the call for the contribution.
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Citations
19 Claims
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1. A method for acquiring a service offered by a service provider over a data network on presentation of a cash card having data stored thereon, said data corresponding to money in electronic form, by carrying out first a prenegotiation phase to order the service and subsequently a transaction phase including a compensation phase to make a contribution for delivery of the service, the service being ordered by means of a user end system that includes the cash card, from the service provider, the service provider thereupon calls a clearing center which subsequently enters into a data exchange with the user end system, to call for there from a necessary contribution in the form of certain data required for acquisition of the service, the method comprising steps in the prenegotiation phase of:
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at the user end system, determining an individual identifier of the cash card, for use in the transaction phase that includes the data exchange that calls for the contribution in order to homogenously link the ordering process with the following compensation process; at the user end system, sending a first prenegotiation message including the identifier to the clearing center; and at the user end system, receiving the identifier back there from the clearing center with a second prenegotiation message for acknowledgement; wherein the compensation phase further comprises using the identifier to effect a data exchange in which the money in electronic form stored on the cash card is reduced by the amount to be paid and a corresponding amount is credited to the clearing center. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 19)
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15. An assembly for executing a method for acquiring a service offered by a service provider over a data network on presentation of a cash card having data stored thereon, said data corresponding to money in electronic form, by carrying out a first prenegotiation phase to order the service and subsequently a transaction phase including a compensation phase to make a contribution for delivery of the service, the assembly comprising:
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a user end system, connected to the data network, to order the service in a prenegotiation phase using an individual identifier of the cash card; and a clearing center, connected to the data network, to request a contribution from the cash card in a transaction phase using the identifier associated with the cash card, the clearing center including a transaction module to communicate with the user end system, and a compensation module to request the contribution to be made by the cash card and to communicate with a background system in which a cash account associated with the cash card is stored; wherein the identifier is used to effect a data exchange in which the money in electronic form stored on the cash card is reduced by the amount to be paid and a corresponding amount is credited to the clearing center. - View Dependent Claims (16, 17, 18)
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Specification