In this paper, we study the dynamics of objects in multidatabase context with respect to time, and propose to incorporate the temporal active database paradigm into multidatabases to provide a suitable platform for specification of how global interfaces react to the anticipated dynamic changes of the local databases as well as the global users. Since global interfaces take requests from the global users and retrieve data from local databases to reply to the users, these interfaces should respond to either changes in the databases or the global users actively.
