| 摘要 |
A system for electronic commerce in a computer network (3) comprises a served unit (CH) which has a first interface with a plurality of first computers (SP), from which users are able to order services using handheld computer units (1), and a second interface with a plurality of second computers (PP) which handle accounts that are associated with the users of the hand-held computers units. The server unit (CH) has access to a database (20) that for each user stores a user identifier, which indicates the identity of the user, and a computer network address associated with the user identity, the computer network address realting to one of the second computers (PP) that handles an account belonging to the user. The system also comprises a registration unit (RS) which is linked to the database (20) and which allows an association to be made in the database (20) between any computer network address and a given user identifier. Using this arrangement, a service provider that has one of the first computers (SP) is able to accept payment from any payment provider that has one of the second computers (PP), without the service provider needing to have any relationship with the payment provider in advance. |
