0006276: Clarification needed for "content" of the DataTypeDefinition Attribute when used in Sub(Sub)Types for DataTypes

ID	Project	Category	View Status	Date Submitted	Last Update

0006276	10000-006: Mappings	Spec	public	2020-11-23 21:34	2020-12-01 16:49

Reporter	Hock, Christian	Assigned To	Randy Armstrong
Priority	normal	Severity	block	Reproducibility	always
Status	closed	Resolution	fixed

Summary	0006276: Clarification needed for "content" of the DataTypeDefinition Attribute when used in Sub(Sub)Types for DataTypes
Description	We found a lot of stuff where and how the DataTypeDefiniton is used. What we didn't find is - how the DataTypeDefiniton Attribute shall be "filled" when it is used in a SubType. Example: MySuperType 'a' as string 'b' as int32 MySubType (HasSubType Reference to MySuperType) 'x' as string 'y' as string The question is now - what shall be the content of the DataTypeDefinition Attribute at Runtime? We assume, it "might" be the collection of all "IsSubTypeOf" References up to "0:Structure". But, we couldn't find such a statement in any OPC UA Spec.
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Fix Due Date

Matthias Damm 2020-11-24 07:58 developer ~0013292 Last edited: 2020-11-24 08:29	The UANodeset schema DataTypeDefinition.fields contains only the fields defined in the data type, not the fields from the base type. This is not explicitly defined in Part 6 but this is the way it is implemented in the UANodesets distributed with OPC UA specs. The DataTypeDefinition Attribute in StructureDefinition .fields contains all fields of a structure including the fields of the base type. The base type fields come first followed by the fields defined by the subtype. This is clearly defined in Part 3. This is defined in OPC UA Part 3 Table 34 – StructureDefinition Structure Name: fields Description: For Structures derived from another Structure DataType this list shall begin with the fields of the baseDataType followed by the fields of this StructureDefinition. Proposed clarifications: Part 6 - F.12 DataTypeDefinition - Table F.12 – DataTypeDefinition - fields Clarify that the fields contain only the fields defined by this DataType. Add reference to Part 3 and explain that the corresponding attribute contains the full list including fields from the base types.

Randy Armstrong 2020-11-27 09:29 administrator ~0013309	Fixed in Draft 22.

Jim Luth 2020-12-01 16:49 administrator ~0013334	Agreed to changes in Telecon.

Date Modified	Username	Field	Change
2020-11-23 21:34	Hock, Christian	New Issue
2020-11-24 07:58	Matthias Damm	Note Added: 0013292
2020-11-24 08:29	Matthias Damm	Note Edited: 0013292
2020-11-27 09:29	Randy Armstrong	Assigned To	=> Randy Armstrong
2020-11-27 09:29	Randy Armstrong	Status	new => resolved
2020-11-27 09:29	Randy Armstrong	Resolution	open => fixed
2020-11-27 09:29	Randy Armstrong	Note Added: 0013309
2020-12-01 16:49	Jim Luth	Status	resolved => closed
2020-12-01 16:49	Jim Luth	Fixed in Version	=> 1.05
2020-12-01 16:49	Jim Luth	Note Added: 0013334