Generation of Digital Twins for Information Exchange Between Partners in the Industrie 4.0 Value Chain.

In Industry 4.0, the digital twin is represented as an Asset Administration Shell. The Asset Administration Shell meta-model is used to develop this digital twin. A developer needs ready-made exchange formats and data schemas to be able to work efficiently with libraries in his programming languages. The existing representations of the metamodel in XML, JSON and RDF, in their current form, have been created manually by individual working group members. This process is error-prone and inconsistent in the enforcement of serialization rules, leading to many manual re-implementations of the Asset Administration Shell in each representation. We present an approach to automatically generate the different data schemas for information exchange between partners in the Industry 4.0 value chain, based on the intermediate representation of the formalized meta-model. The approach enables a practical and simple development process of and is scalable across different exchange formats and their future changes.