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Pull Shop Floor Control (Push vs. pull (Comparing push and pull…

- - - - inherently due-date driven
      - control release rate, observe WIP level
  - - - inherently rate driven
      - control WIP level, observe throughput
    - - Reduced costs
      - Reduced variability
      - Improved quality
      - Maintained flexibility
  - - - WIP is directly observable, while throughput is not
    - - A pull system has less variable flow times
    - - A pull system requires less WIP to obtain a given level of throughput
    - - A profit function of the form (p∙TH – h∙WIP) is more sensitive to errors in TH than WIP.
- - - - Basic SFC for CONWIP
      - CONWIP flexibility
      - Tandem CONWIP
      - Shared resources
      - Jobs with different processing times
      - CONWIP assembly lines