Abstract: The present invention provides a data management method, a computer program for the same, a recording medium thereof, a user client for executing the method, and a security policy server. The method is executed by a user client that is network-linked to a DB server and a security policy server, the method including: 1) recognizing a user ID through a user authentication; 2) detecting whether a DB control application is executed; 3) determining whether the application is allowed to be used for the user ID; 4) determining whether the DB server is allowed to be accessed by the user ID when determining that the application is allowed to be used; 5) allowing access to the DB server when determining that the DB server is allowed to be accessed; and 6) when data is transmitted from the DB server, encrypting and managing the data according to a preset user right policy.

Abstract: A method and system for synchronizing documents in a distributed server-client environment. The system includes a synchronization server, a distributor client, a user client, and/or a network connecting the server and the clients. The method includes the steps of wrapping synchronization information such as document ID and version number in a synchronized document, storing the synchronized document and the synchronization information in a synchronization server, and comparing the local version with the version stored in the sync server if a latest version is to open, and if the local version is not the latest version, accessing the latest version document by receiving the document from the synchronized server.

Abstract: The present invention provides a data management method, a computer program for the same, a recording medium thereof, a user client for executing the method, and a security policy server. The method is executed by a user client that is network-linked to a DB server and a security policy server, the method including: 1) recognizing a user ID through a user authentication; 2) detecting whether a DB control application is executed; 3) determining whether the application is allowed to be used for the user ID; 4) determining whether the DB server is allowed to be accessed by the user ID when determining that the application is allowed to be used; 5) allowing access to the DB server when determining that the DB server is allowed to be accessed; and 6) when data is transmitted from the DB server, encrypting and managing the data according to a preset user right policy.

Abstract: A method and system for synchronizing documents in a distributed server-client environment. The system includes a synchronization server, a distributor client, a user client, and/or a network connecting the server and the clients. The method includes the steps of wrapping synchronization information such as document ID and version number in a synchronized document, storing the synchronized document and the synchronization information in a synchronization server, and comparing the local version with the version stored in the sync server if a latest version is to open, and if the local version is not the latest version, accessing the latest version document by receiving the document from the synchronized server.