Pearl necklace (logistics)

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Pearl necklace is a term used in logistics , especially in automotive engineering , which denotes a fixed order or production sequence; therefore the term production control with stable order sequences is often used. The sequence of the production orders (“the pearl necklace”) is already determined a few days before the start of production and should then no longer be changed in the various production areas that the product has to pass through.

Establishing the production sequence at an early stage is intended to improve compliance with production deadlines and control of the entire material flow. This makes it possible, for example, to lower stocks, better utilize capacities, optimize transport, deploy employees more effectively, avoid overload peaks or reduce or avoid the so-called bullwhip effect .

The concept of the pearl necklace is an extension of the “ just in sequence ” concept, it is intended to synchronize the material flow and the material provision in a longer supply chain (see supply logistics ) and / or in several production areas.

The theory of the pearl necklace principle is simple, but it is difficult to implement, since disruptions in the process can prevent the order from being followed while the orders are being processed. As a quality criterion, the sequence quality indicates what proportion of the orders were actually produced in the planned sequence. If an order in the pearl necklace is premature or delayed, for example because there were quality problems in production or a supplier part is not available on time, then all parts delivered just in sequence must be resequenced accordingly.

literature

  • Matthias Weyer, Dieter Spath: The production control concept “pearl necklace” . In: ZWF (magazine for economical factory operation) . Volume 104, No. 12 , 2009, p. 1126-1130 .
  • Matthias Weyer: The pearl chain production control concept and its key figure system . 1st edition. Helmesverlag, Karlsruhe 2002, ISBN 3-9808133-5-5 , p. 79-82 .
  • Matthias Weyer, Dieter Spath: The key figure system of the production control concept “pearl necklace” . In: ZWF (magazine for economical factory operation) . Volume 96, No. 3 , 2001, p. 116-119 .
  • Matthias Weyer, Dieter Spath: The production control concept "pearl necklace" . In: ZWF (magazine for economical factory operation) . Volume 96, No. 1-2 , 2001, pp. 17-19 .
  • Wilmjakob Herlyn: PPS in automotive engineering - production program planning and control of vehicles and assemblies . Hanser Verlag, Munich 2012, ISBN 978-3-446-41370-2 .
  • Florian Klug: Logistics Management in the Automotive Industry - Basics of Logistics in the Automotive Industry . Springer Verlag, 2010, ISBN 978-3-642-05292-7 .

Individual evidence

  1. ^ F. Klug: Logistics management in the automotive industry. Springer Verlag, Heidelberg 2010, p. 388 ff.
  2. ^ W. Herlyn: PPS in automobile construction. Hanser Verlag, Munich 2012, p. 199, p. 220.

Web links