QUDT unit Update

model/Core/Classes/UnitOfMeasure.md

@@ -4,12 +4,13 @@ SPDX-License-Identifier: Community-Spec-1.0
 
 ## Summary
 
-UnitOfMeasure specify information structures through industry standards for
-Units of Measure, Quantity Kinds, Dimensions and Data Types.
+A class that represents a measured quantity paired with a unit of measure from the QUDT ontology.
 
 ## Description
 
-The QUDT, or "Quantity, Unit, Dimension and Type" schema defines the base classes properties, and restrictions used for modeling physical quantities, units of measure, and their dimensions in various measurement systems.
+UnitOfMeasure class provides a structured way to express measurements: such as size, weight, volume, or other quantities.
+It combines a numerical value `quantity` with a unit reference `unitQUDT` that points to a URI in the QUDT (Quantity, Unit, Dimension and Type) ontology.
+The QUDT ontology and specifications are available at [www.qudt.org](https://www.qudt.org/).
 
 ## Metadata
 
@@ -23,6 +24,6 @@ The QUDT, or "Quantity, Unit, Dimension and Type" schema defines the base classe
   - minCount: 1
   - maxCount: 1
 - unitQUDT
-  - type: xsd:string
+  - type: xsd:anyURI
   - minCount: 1
   - maxCount: 1

model/Core/Properties/unitQUDT.md

@@ -4,7 +4,7 @@ SPDX-License-Identifier: Community-Spec-1.0
 
 ## Summary
 
-A QUDT unit applied to measurement criteria based on product type, region,
+A QUDT (Quantity, Unit, Dimension and Type) unit applied to measurement criteria based on product type, region,
 and use.
 
 ## Description
@@ -13,10 +13,10 @@ QUDT (Quantity, Unit, Dimension and Type) specifies a standardized framework
 for describing measurable quantities, units of measure, numerical values,
 and their underlying data structures and types.
 
-The QUDT ontology and specifications are available at <https://www.qudt.org/>.
+The value is constrained to the QUDT ontology and specifications. The QUDT ontology and specifications are available at <https://www.qudt.org/>.
 
 ## Metadata
 
 - name: unitQUDT
 - Nature: DataProperty
-- Range: xsd:string
+- Range: xsd:anyURI

model/Hardware/Classes/Dimensions.md

@@ -18,14 +18,14 @@ Dimensions generally refer to measurable extents or attributes that define the s
 ## Properties
 
 - xAxisLength
-  - type: /Core/MeasureOfLength
+  - type: /Core/UnitOfMeasure
   - minCount: 1
   - maxCount: 1
 - yAxisLength
-  - type: /Core/MeasureOfLength
+  - type: /Core/UnitOfMeasure
   - minCount: 1
   - maxCount: 1
 - zAxisLength
-  - type: /Core/MeasureOfLength
+  - type: /Core/UnitOfMeasure
   - minCount: 1
   - maxCount: 1

model/Hardware/Classes/PhysicalHardware.md

@@ -19,7 +19,7 @@ A PhysicalHardware artifact describes a distinct physical unit.
 ## Properties
 
 - massOfHardware
-  - type: /Core/MeasureOfMass
+  - type: /Core/UnitOfMeasure
   - minCount: 0
   - maxCount: 1
 - dimensions

model/Hardware/Properties/massOfHardware.md

@@ -4,14 +4,14 @@ SPDX-License-Identifier: Community-Spec-1.0
 
 ## Summary
 
-Information related to massOfHardware physical hardware.
+The physical mass of a hardware component.
 
 ## Description
 
-Mass is defined as an intrinsic property of a body for describing a physical hardware component.
+This property specifies the mass of a physical hardware element. The value must be expressed using the `Core/UnitOfMeasure` type, which requires both a `quantity` and a `unitQUDT`. The `quantity` must denote a mass quantity, and the `unitQUDT` must be a unit of mass from the QUDT vocabulary, specifically constrained to the quantity kind `http://qudt.org/vocab/quantitykind/Mass`.
 
 ## Metadata
 
 - name: massOfHardware
 - Nature: DataProperty
-- Range: /Core/MeasureOfMass
+- Range: /Core/UnitOfMeasure

model/Hardware/Properties/xAxisLength.md

@@ -4,14 +4,14 @@ SPDX-License-Identifier: Community-Spec-1.0
 
 ## Summary
 
-Information related to hardware dimension.
+The length along the x-axis.
 
 ## Description
 
-Information related to xAxis measurement of an object.
+This property specifies the length along the x-axis of a hardware component. The value must be expressed using the /Core/UnitOfMeasure type which requires both a quantity, and a unitQUDT which must be a unit of length from the QUDT vocabulary, specifically constrained to the http://qudt.org/vocab/quantitykind/Length.
 
 ## Metadata
 
 - name: xAxisLength
 - Nature: ObjectProperty
-- Range: /Core/MeasureOfLength
+- Range: /Core/UnitOfMeasure

model/Hardware/Properties/yAxisLength.md

@@ -4,14 +4,14 @@ SPDX-License-Identifier: Community-Spec-1.0
 
 ## Summary
 
-Information related to hardware dimension.
+The length along the y-axis.
 
 ## Description
 
-Information related to yAxis measurement of an object.
+This property specifies the length along the y-axis of a hardware component. The value must be expressed using the /Core/UnitOfMeasure type which requires both a quantity, and a unitQUDT which must be a unit of length from the QUDT vocabulary, specifically constrained to the http://qudt.org/vocab/quantitykind/Length.
 
 ## Metadata
 
 - name: yAxisLength
 - Nature: ObjectProperty
-- Range: /Core/MeasureOfLength
+- Range: /Core/UnitOfMeasure

model/Hardware/Properties/zAxisLength.md

@@ -4,16 +4,16 @@ SPDX-License-Identifier: Community-Spec-1.0
 
 ## Summary
 
-Information related to hardware dimension.
+The length along the z-axis.
 
 ## Description
 
-Information related to zAxis measurement of an object.
+This property specifies the length along the z-axis of a hardware component. The value must be expressed using the /Core/UnitOfMeasure type which requires both a quantity, and a unitQUDT which must be a unit of length from the QUDT vocabulary, specifically constrained to the http://qudt.org/vocab/quantitykind/Length.
 
 Z axis is the height of the object.
 
 ## Metadata
 
 - name: zAxisLength
 - Nature: ObjectProperty
-- Range: /Core/MeasureOfLength
+- Range: /Core/UnitOfMeasure