Term AggregatingServer. Base spec uses aggregating server a lot (not defined as term). Confusing to have here a term definition for it. Is this different than in the base spec?

Section 3.3.2 (and probably other places) object -> Object (used in the context as an OPC UA Object, so term writing needs to be used)

Section 4.3.3 reference type -> ReferenceType

Section 4.3.3 LLDP is used without explanation or reference (only once in the doc)

AutomationComponentType definition (Table 4 and 5). Based on Table 5 the folder contains a <FunctionalEntity>. This is not defined (there is a table format for that). Same for Assets folder.

Table 21 (AutomationComponentCapabilitiesType)
<Capability> is not needed, having OP of a generic Variable is always true on each ObjectType. Also, no text describing why it is there.

In the FxAssetType all identification properties are optional (e.g. MajorAssetVersion, ProductInstanceUri). But in the VerifyAsset method description it sounds like some are mandatory.

In ConnectionConfigurationSetEventType NodeId does not seem to be a understandable Property name. Better ConnectionConfigurationId or something like that.

Why has Table 162 – PortableNodeIdentifier union an optional column? It is a union, so you take only one.

Section 13.2.2 references to the ModelVersion. Not sure what this means, cannot find a definition.