The evolution of industrial firms has recently passed from a strong growth
phase to a phase where there is a greater complexification of products: wid
ening the range of products in catalogues, diversification and personalizat
ion of models. The current trend is to use, with production management tech
niques such as classical manufacturing resource planning (MRP2), the concep
t of two level master production schedule (MPS), using planning bills with
percentages indicating the probability that such or such an option will be
used. This necessitates, however, the implementation of a rigorous approach
to continuous improvement using just in time (JiT) and total quality (TQ)
concepts. In the first part of our paper we discuss principles of operating
two level MPS; secondly, we analyze these effects on management and organi
zation. Our paper is based on a case study. (C) 2000 Elsevier Science B.V.
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