As a 21st-century concept, the Digital Twin captures the idea that we are moving work from the physical world into the virtual one. It moves toward using bits, which are getting cheaper all the time, in place of atoms, which are getting more expensive. We are replacing expensive physical time, energy, and material with much cheaper digital information.
The Digital Twin is the concept driver behind Manufacturing 4.0. It moves us from a functional- centric approach to a product-centric one. It integrates manufacturing as a critical aspect of product creation, so that how to manufacture products is not an after-thought once a product is designed and engineered. It will improve both productivity and quality.