Abstract: DBR approach is the management tool of TOC when applied to an production system. Time buffers in DBR have direct influence on lead times and the system’s throughput,which will ultimately affect the competitive edge of the products a production system produces. The determination of time buffers is exploited in detail with the corresponding mathematical model for determining the size of time buffers being presented in this paper.

Key words: TOC, DBR, buffer mechanism, bottleneck