Abstract: A system for permission control includes transferring permission data between a user and a vendor associated with other unique identification data, in particular relating to a permission element. A user's service request is performed between a user interface and responding external issuer device. The system includes a distribution server, adapted to distribute electronic documents from the issuer to users. The server communicates with the issuer device and a communication terminal. The system comprises at least one persistent memory location, accessible from the issuer device, the distribution server and a validation unit, arranged for storage of data relating to the permission control.

Abstract: The present invention relates to a trade system for automated transfer of valuable documents between a user and a vendor, in particular relating to user activities and/or reservations. Transfer of documents within the system are performed bi-directionally between a user interface (10) and a responding external booking unit (20) of the system. The system comprises a distribution server (40), adapted to dis-tribute documents from the vendor to users of the system and a payment service (30) for administration of payments for transferred documents. Both the server (40) and the payment service (30) associated with the booking unit (20) and a communication terminal (50) is adapted for communication with the distribution server (40) by means of a message carrier means. Moreover the system comprises a persistent memory (1, 2, 3) accessible from the booking unit (20), and the distribution server (40), is arranged for storage of data relating to the transfer of documents.