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External agent: External authorization network External agent: Billing system External agent: ATM system External agent: Administrator of IS Object: Authorization system Auth-Bill-Ticket Info Comptes 2 Info Comptes 1 Autorisation Auth Extern Auth-Bill-Ticket Info Comptes 2 Info Comptes 1 Autorisation Auth Extern Architecture externe Authorization system Max=0... Max=0... Max=0... Max=0... Max=0... Max=0... Max=0... Max=0... Max=0... Max=0... Max=0... Max=0... Max=0... Max=0... Max=0... Max=0... Max=0... Max=0... Max=0... Client service point: Authorization remote client... Server service point: Alien cardholder authorization... Client service point: Authorizations billing () Client service point: CX-Acces ATM authorization (Access... Client service point: Administration of authorization system... Server service point: CX-Acces ATM authorization (Access... Server service point: Authorizations billing () Server service point: Authorization remote client... Client service point: Alien cardholder authorization... Server service point: Administration of authorization system... External authorization network Billing system ATM system Administrator of IS Authorization system