The September issue of IEEE’s Computing Edge magazine has informative article on Cyber-Physical Systems and Digital Twins in the Industrial Internet of Things.
A digital twin is a digital representation of a real system that models every aspect over time. The article explains the interoperability challenges in implementing a digital twin:
Product and production process models must be seamlessly integrated with simulation and prediction models, as well as with tools and systems dealing with data analytics and optimization
It’s explained how digital twins are currently at the conceptual stage and haven’t yet demonstrated wide industrial adoption.