Effective MRO (Maintenance and Repair Parts and Operating Supplies) materials management is simply a derivative of the time-honored function of Supply Demand Planning. Day one in Econ 101, the professor presents a graph explaining the supply demand continuum. That same simple concept applies to MRO parts management. There is certainly the supply aspect; does the storeroom have what is needed when it is needed? But the key to having what is needed, when it is needed, is dependent upon robust demand-side signals ...