Durham School of Architectural Engineering and Construction


Date of this Version



POMS 23rd Annual Conference, Chicago, Illinois, U.S.A., April 20 to April 23, 2012


Copyright (c) 2012 Arefeh Mohammadi and Emmanuel S. Eneyo


Theory of constraints (TOC) is a management philosophy that seeks to increase throughput (efficiency or performance) of the system by identifying those processes that are constraining the system bottlenecks. There have been very few profound studies of TOC in health care systems. In order to fill this gap, this study was conducted to determine how healthcare systems are utilizing components of TOC to schedule operations and what results are being obtained. This is done by using a patient flow model for a radiotherapy section of a hospital. The drum-buffer-rope (DBR) was used as the methodology for scheduling this flow. Successful outcomes obtained by proposed model improved the efficiency and quality of radiotherapy treatment.