The Refresh project has investigated concepts and methods of reactive scheduling for production and logistic
processes. The already existing Déjà Vu Scheduling Class Library was extended with reactive capabilities. With
this software, individual applications for the intended domain may be constructed by derivation and aggregation of
classes, and by adaptation of parameters. The software supports an interactive graphical user interface, a manually
as well as automatical scheduling of orders, an optimization of schedules, and the reaction to unforeseen events in
the shop floor. The system will reschedule under certain conditions in such an event. The system was evaluated in
a simulation environment based on Internet communication standards, where several actors such as clients,
suppliers and the shop floor were simulated as autonomous agents. The research was performed in collaboration
with Robotics Institute of Carnegie Mellon University in Pittsburgh and the School of Mechanical and
Manufacturing Engineering of University of New South Wales in Sydney. A documentation of project results can
be found at http://www.dbai.tuwien.ac.at/proj/Refresh/.