| 摘要 |
An embodiment is directed to synchronizing a universal address book located in a database amongst a first user and a second user. The first user sends an initialization message to the database and an invitation message to the second user. The first user receives an acceptance message from the second user and sends an update message to the database. The initialization message includes current personal data of the first user, the invitation message includes a database pointer, and the update message changes the personal data of the first user in the database and prompts the database to inform the second user of the changed data of the first user. |
