What we can learn from this investigation is that a
sound theory-supported way exists for choosing the
parameters for advanced MRP control by which both
demand and yield risk are appropriately taken into
consideration. The good performance of the linear
order rule pBM(x) makes it recommendable to fix the
yield factor without any risk adjustment to YF ¼ 1/
mZ, while the safety stock SST should be determined
according to formula (12). With these parameters the
common MRP calculations can be performed in an
advanced way as described in Section 4. If it is
preferred to work with a standard MRP scheme
without continuously updating the safety stock, the
simplified approach of computing a constant safety
stock according to (13) could be applied.