1. A method to manage at least one user tag associated with a multimedia object held by a user and stored in memory on an application server, the user tag being liable to be accessed by at least one other user through a telecommunication network, comprises the following steps on the application server: Semantically analysing the user tag to determine a structured set of confidentiality tags, When another user accesses the user tag, determining the social category of the other user in relation to the user and selecting a confidentiality tag from the structured set relating to the user tag based on the determined social category, Sending the selected confidentiality tag to the other user.
1. A method to manage at least one user tag associated with a multimedia object held by a user and stored in memory on an application server, the user tag being liable to be accessed by at least one other user through a telecommunication network, comprises the following steps on the application server: Semantically analysing the user tag to determine a structured set of confidentiality tags, When another user accesses the user tag, determining the social category of the other user in relation to the user and selecting a confidentiality tag from the structured set relating to the user tag based on the determined social category, Sending the selected confidentiality tag to the other user. 4. The method according to claim 1 , wherein an expression comprised in the user tag are not included in a structured set that was previously stored in memory on the application server and new confidentiality tags having hierarchical links among them are generated and added the structured vocabulary.