PLM Library · Paper

Digital Twin in manufacturing: A categorical literature review and classification

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Author
Werner Kritzinger, Matthias Karner, Georg Traar, Jan Henjes, Wilfried Sihn
Publisher
IFAC-PapersOnLine, Vol. 51, No. 11 (Elsevier)
Year
2018

Summary

A literature review that brings order to the many uses of the term "digital twin" in manufacturing.

Its best-known contribution is a classification by level of data integration: the Digital Model (manual data exchange), the Digital Shadow (automatic flow from physical to digital) and the Digital Twin (automatic flow in both directions).

Our verdict

Recommended — short and useful. The model / shadow / twin distinction is a simple, practical way to cut through vendor marketing and agree on what a "digital twin" project actually means.

Who should read it

  • —Anyone discussing or scoping digital twin initiatives
  • —PLM and manufacturing leaders evaluating vendor claims

How it relates to your work

  • —Gives a shared vocabulary for how tightly PLM data is connected to physical products and production.
  • —Helps set realistic scope when planning digital twin or digital thread work.

Keep in mind

  • —A literature review, so it classifies rather than explains how to build twins.
  • —Focused on manufacturing; product-in-use twins get less attention.