A study on a real-time scheduling of holonie manufacturing systems (2nd report, determination of effectiveness values based on estimation of future status of HMS)

This paper deals with a real-time scheduling system of HMS (Holonic Manufacturing System). A decision making process based on the effectiveness values have been proposed and applied to the real-time scheduling problems of the HMS in the previous report. New systematic methods for the individual holons are proposed, in the paper, to determine the effectiveness values based on the estimation of the future HMS status, aiming at improving the previous methods. Simulation based procedures are newly developed and implemented to estimate the future HMS status and to determine the effectiveness values. The effectiveness of the proposed methods are verified through the case studies.