Abstract
In this paper, we deal with a class of scheduling problems in manufacturing systems of the flexible flow shop type, and consider a situation in which the system includes a type of delays due to disruption such as machine breakdowns. To cope with this situation, we compose a reactive scheduling approach in which a schedule revision method for acquiring a feasible and efficient schedule in real time is applied based on the multi-stage decision-making model. We demonstrate the effectiveness and the potential of the proposed method through some computational experiments.