Decision-Making and Reactive Tactical Planning Approach

This paper addresses the problem of tactical supply chain planning under uncertainty and perturbation. Uncertainty is considered on customer demand. Perturbation is seen as the result of one or more events that may affect the production process and modify already taken decisions. We develop an approach based on successive planning steps (rolling horizon procedure). For each planning step, data is updated and real implemented decisions are taken into account. To deal with uncertainty and perturbation, a detailed analysis of the different stages in decision making is done. This leads us to an original modeling of the decision process. A linear programming model is then proposed. Numerical experiments show the benefits of our approach to face uncertain and disrupted environment.