The Asset Administration Shell (AAS) has been an important industry framework for modeling data to populate Digital Twins. Recently, there has been interest in using AAS to populate Digital Product Passports. Since Digital Product Passport data can involve domains other than industry, many relevant data standards are expressed using Semantic Web standards rather than AAS, creating an interoperability issue. To address this issue, we present software for converting from AAS templates to a description in the Resource Description Framework (RDF). Most previous literature on such conversions has presented domain-specific solutions. Our solution is general-purpose, which we demonstrate by applying it to various examples, including the Battery Pass and CarbonFootprint models. We also improve on previous work by targeting the latest major version (3.0) of the AAS standard. Furthermore, our solution casts the conversion output in terms of the OWL and RDFS standards, enabling Semantic Web tooling to consume detailed information from the AAS model about type hierarchies and value ranges. We highlight these interoperability gains by applying the Semantic Treehouse toolsuite to the converted AAS models, demonstrating new opportunities for model reuse and for consolidation of the AAS models with a broader range of semantic standards.
Kuiper et al. (Thu,) studied this question.