| 摘要 |
The invention deals with database synchronization. A first database (DB1) is stored in a removable device for example a smartcard (CAR) communicating wit h a first system (MOB). A second database(DB2) of the same nature being stored in a second system (PDA) communicating with said first system.Said first and second system (MOB, PDA) comprises means able to generate synchronization objects defining the last database synchronization which has been performed between said two databases of saidtwo systems. After each synchronization st ep of the first database (DB1) with the second database (DB2),a program externa l to the removable device (CAR) sends a command to the removable device (CAR) forsetting a synchronization object to said first database (DB1), said synchronization object being also affectedto the second database (DB2) which has been synchronized.
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