new planning methodology for coping with this uncertainty caused by disruptions is presented. Planning steps described by their preconditions and their consequences are used for material requirements planning and scheduling. Preconditions of planning steps have to be satisfied in a certain state of environment for the planning steps to be applicable. Consequences of planning steps change the st...

while the conventional dea based production plans aim to minimize all the inputs consumption and maximize all the outputs production, there are many real world production systems may also generate undesirable by-products. one methodological difficulty associated with the previous dea-based production planning models is how to incorporate undesirable factors in the planning models, while the sim...

Based on uncertainty theory, multiproduct aggregate production planning model is presented, where the market demand, production cost, subcontracting cost, etc., are all characterized as uncertain variables. The objective is to maximize the belief degree of obtaining the profit more than the predetermined profit over the whole planning horizon. When these uncertain variables are linear, the obje...

1 Agent based system is a collection of autonomous computational elements, independent programs (hereafter we will refer to these elements as agents) that perform collective behaviour in order to meet either their individual goals (selfinterested agents) or a in-community shared goal (collaborative agents) [7], [5]. They exchange information and knowledge in order to achieve desired instance of...

We consider a production planning problem under uncertainty in which companies have to make product allocation decisions such that the risk of failing regulatory inspections of sites and consequently losing revenue is minimized. In the proposed decision model the regulatory authority is an adversary. The outcome of an inspection is a Bernoulli-distributed random variable whose parameter is a fu...

Based on the position of a single CODP, the production planning of mass customization is divided into two stages, make-to-stock production before CODP and make-to-order production after CODP. However, in the case of multiple CODPS, production planning of mass customization can be much more complex. This paper presents a dynamic mass customization system, that is, a three-stage production planni...

Production scheduling (planning) of an open-pit mine is the procedure during which the rock blocks are assigned to different production periods in a way that the highest net present value of the project achieved subject to operational constraints. The paper introduces a new and computationally less expensive meta-heuristic technique known as imperialist competitive algorithm (ICA) for long-term...

Production planning and maintenance are two important problems in manufacturing systems. Despite the relationship exists between these two problems due to sudden failures and production capacity occupied by maintenance activities, each of these problems planned separately and as a result program and model efficiencies reduce in the real world. The aim of integrated production and maintena...