Real-time buffer management method for DBR scheduling

Kiyun Woo*, Soonyoung Park, Shigeru Fujimura

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

4 Citations (Scopus)


This paper proposed the real-time buffer management method which extends the concept of 'buffer' by using Drum-Buffer-Rope (DBR) scheduling technique of Theory of Constraints (TOC) according to real-time information. The current DBR buffer is used to supervise ascertain whether the product in the last stage of the production process, stages managed by the buffer, has arrived. If the product has not arrived the warning sign continues to be emitted and the check action for that situation is left to the operators. The problem arises when a meaningless warning sign is emitted for too long and it affects the operators. The mechanism proposed in this paper suppresses the meaningless warnings by using the detailed schedule information provided by the on-site operators and actual result information obtained by the on-site instruments.

Original languageEnglish
Pages (from-to)42-57
Number of pages16
JournalInternational Journal of Manufacturing Technology and Management
Issue number1-2
Publication statusPublished - 2009


  • CCR
  • CCR buffer
  • Capacity constrained resource
  • DBR
  • Drum-buffer-rope
  • Shipping buffer
  • TOC
  • Theory of constraints

ASJC Scopus subject areas

  • Computer Science Applications
  • Strategy and Management
  • Industrial and Manufacturing Engineering
  • Information Systems and Management
  • Electrical and Electronic Engineering


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