A Submodel in Catena-X represents a standardized digital twin component that defines specific data structures and semantics for sharing information about an asset or process across organizations. It enables interoperable data exchange by adhering to established standards like Asset Administration Shell (AAS).
Each submodel uses a semantic model.
The submodel is a digital representation of a physical object (e.g. steering wheel) or a virtual object (e.g. contact information). The submodel must then be filled with the specific data. For example, the technical data of a steering wheel or part numbers of machine components. The submodel uses the data structures of a specific semantic model.
The semantic models provided by Catena-X and Dataspace OS are particularly suitable for the automotive industry.
An “asset” is used to share the data of the submodel with others. The asset contains a static link to the corresponding submodel.
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JSON format for Submodels
Submodels are created in JSON format by default in Catena-X. Submodel templates can also be used, which are available in the Sematic Hub on the Cofinity-X Portal (see Use Submodel Templates to Generate a Submodel).
Example submodel for a specific part "steering wheel" and its basic technical information:
