DBR for Material Flow Published on November 2, 2014 in A Critical Look at Goldratt’s Drum-Buffer-Rope MethodFull resolution (785 × 264) Illustration of Drum Buffer Rope for Material Illustration of Drum Buffer Rope for Material flow. This work by Christoph Roser at AllAboutLean.com is licensed under a Creative Commons Attribution-ShareAlike 4.0 International License. Please credit the image as shown below. For digital documents and web pages please do include the links as shown below. Thank you.By Christoph Roser at AllAboutLean.com under the free CC-BY-SA 4.0 license.