Patent attributes
Embodiments of the invention provide a computer-aided production planning method and system for accurately and quickly drafting a production plan for a given period for a production system employing a production line with a salvage process. In one embodiment, the method includes a new parts supply quantity recalculating step of recalculating the quantities Xi,j of parts to be newly supplied based on obtained actual product yields Bj, actual production process total supply quantity ratios Ci,j, actual production process salvage ratios Di,j, the requested quantities Aj of finished products, and correction parameters Fi,j for the actual production process total supply quantity ratios Ci,j; and a production process load determining step of, to draft a production plan for a given period, determining the load on each production process of the production line on each day based on the quantities Xi,j of parts to be newly supplied in such a way that the requested quantities Aj of finished products can be produced, the quantities Xi,j being recalculated at the new parts supply quantity recalculating step.
