Managing large projects in a cooperative fashion with geographically distributed partners is a complex process. Support tools are required for information sharing and they must permit synchronized, collaborative actions. Actions are triggered by timed events, by automated assessment and control modules, by traditional joint reviews of visualizations of the project state, or other means. They result in new planing steps, re-scheduling of milestones and resources, mailings of alerts, highlighting of critical sections in the project plan. Here, we describe an approach relying on an active, object-relational database which generates visualizations of the global state and may include multimedia data. The visualizations are distributed to the clients via applets for common Web browsers. Moreover, through socket connections, clients can also navigate and edit the global state using a cursor paradigm. Process control is provided with scripts, based on extensions of Tcl/Tk. The proposed...