摘要:
A production progress control method is for controlling priorities for the progress of production lots among those lots in progress. Each step has a standard working time and each production lot has a processing procedure and a target process period. An expected passage time is calculated for each production lot based on both the standard working time and the target process period and a processing delay process start time is calculated from the difference between the process start time of a current lot in process and the expected target passage time. The highest priority is given to the production lot having the longest processing delay.
摘要:
A process change control apparatus that performs a control function based on information from a manufacturing process is provided in a manufacturing process control system. The change control apparatus includes a recorder which records a change item for which a manufacturing process change control is to be performed, information required for a making judgment, a judgment method, an for extracting date from a manufacturing process and recording required information before and after a change point for each change item recorded in the, a statistical comparison judging device which performs a statistical comparison judgment of the information extracted by the information extractor before and after the change point for each change item, and an output device which outputs the result of the comparison judging device.