OPCFoundation.NetStandard.Opc.Ua.Aas.Debug

Opc.Ua.Aas

The OPC UA for Asset Administration Shell package carries two alternative metamodel generations: published OPC 30270 / AAS V2.0.1 (http://opcfoundation.org/UA/I4AAS/) and the AAS V3 draft (http://opcfoundation.org/UA/I4AAS/v3/). A server should host one generation or the other, not both.

This package contains:

• the AAS V2 and V3 companion namespaces, compiled into the assembly by the OPC UA model source generator — the ObjectTypes, their Methods and Variables, the AAS*DataType structures and enumerations, the generated NodeState classes and the *TypeClient ObjectType proxies. No NodeSet2 XML is parsed at runtime;
• the AAS V2 object model plus ingestion-only readers for AAS JSON, AAS XML and AASX;
• AasNodeIdEncoding, AasIdShortPath and AasBrowseNameAllocator — the deterministic identity rules of clause 6.1.3, so that two implementations materializing the same AAS produce the same nodes;
• AasXsdTypeMap and AasLexicalCanonicalizer — the clause 6.3.1 assignment of each of the thirty DataTypeDefXsd values to one OPC UA DataType, and the XSD canonical lexical forms a round trip emits;
• the AAS V3 object model plus readers and writers for the AAS JSON, AAS XML and AASX serializations;
• V2 and V3 materializers, plus the V3 inverse serializer that satisfies the AAS-LosslessRoundTrip conformance unit;
• Dpp — the Digital Product Passport identifier construction, SSSOM mapping set and access-tier mapping.

The V3 registry half of the draft specification builds on the abstract xRegistry base model, which ships separately as Opc.Ua.XRegistry. V2 has no registry, packages, federation or DPP surface.

It has no dependency on the OPC UA server or client SDKs; those pieces live in Opc.Ua.Aas.Server, Opc.Ua.Aas.Client and Opc.Ua.Aas.WoT.