: Public <<Type>> Class
Created: 08/08/2012 14:04:46
Modified: 14/08/2012 18:32:47
Project:
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Instances of the class 'MeasurementContext' specify the resolution [1] and measuring interval [2] for a given physical property in the context of this measurement procedure.<br /></p><p><br /></p><p>[<i>Note that attribute measuringInterval may be inferred to mean temporal duration; please provide feedback</i>]<br /></p><p><br /></p><p>[1] Resolution: smallest change in a quantity being measured that causes a perceptible change in the corresponding indication (from the 'International vocabulary of metrology' [http://www.bipm.org/utils/common/documents/jcgm/JCGM_200_2008.pdf])<br /></p><p>[2] Measuring interval: set of values of quantities of the same kind that can be measured by a given measuring instrument or measuring system with specified instrumental uncertainty, under defined conditions (from the 'International vocabulary of metrology' [http://www.bipm.org/utils/common/documents/jcgm/JCGM_200_2008.pdf])<br /></p>
Attribute
Public ObservableProperty
  measurand

Details:
Notes: The attribute 'measurand' [1] specifies the physical property that the associated 'resolution' and 'measuring interval' apply to.<br /></p><p><br /></p><p>The measurand may be sourced from an external controlled vocabulary, thesaurus or ontology or defined locally. <br /></p><p><br /></p><p>The measurand may reference a qualified observable property if required. <br /></p><p><br /></p><p>If the measurand references an observable physical property that serves as the base property for a qualified observable property, the measurement context is assumed to apply to ALL the qualified observable properties that reference this base property unless otherwise stated. For example, observable physical property 'radiance' may be qualified to measure wavelength bands 50-100nm, 100-200nm, 200-500nm etc. A measurement context associated with 'radiance' would be inferred to apply to all of these qualified radiance properties.<br /></p><p><br /></p><p>[1] Measurand: quantity intended to be measured (from the 'International vocabulary of metrology' [http://www.bipm.org/utils/common/documents/jcgm/JCGM_200_2008.pdf]<br /></p>
Public UnitOfMeasure
  uom

Details:
Notes: The attribute 'uom' specifies the unit of measure that the values of 'resolution' and 'measuring interval' are specified in.<br /></p><p><br /></p><p>Typically, this will also be the unit of measure used to specify the measured quantity values. Unless otherwise specified, this unit of measure can be assumed to be the default unit of measure for this measurand.<br /></p>
Public RangeBounds
  measuringInterval

Details:
Notes: The attribute 'measuringInterval' [1] specifies the extreme lower and upper limits of property values of the 'measurand' that can measured within this procedure, using the unit of measure 'uom'.<br /></p><p><br /></p><p>[1] Measuring interval: set of values of quantities of the same kind that can be measured by a given measuring instrument or measuring system with specified instrumental uncertainty, under defined conditions (from the 'International vocabulary of metrology' [http://www.bipm.org/utils/common/documents/jcgm/JCGM_200_2008.pdf])<br /></p>
Public Integer
  resolutionScale

Details:
Notes: The attribute 'resolutionScale' specifies the smallest change (e.g. the 'resolution' [1]) in property value of the 'measurand' that is intended to be measured within this procedure, using the unit of measure 'uom'.<br /></p><p><br /></p><p>This shall be provided as a scaling factor.<br /></p><p><br /></p><p>For example:<br /></p><p><ul><li>scale = -2 implies a precision of 100 units </li><br /></p><p><li>scale = -1 implies a precision of 10 units</li><br /></p><p><li>scale = 0 implies a precision of 1 unit</li><br /></p><p><li>scale = 1 implies a precision of 0.1 units</li><br /></p><p><li>scale = 2 implies a precision of 0.01 units </li><br /></p><p></ul>etc.<br /></p><p><br /></p><p>[1] Resolution: smallest change in a quantity being measured that causes a perceptible change in the corresponding indication (from the 'International vocabulary of metrology' [http://www.bipm.org/utils/common/documents/jcgm/JCGM_200_2008.pdf])<br /></p>
Element Source Role Target Role
«Type» CompositeMeasurementContext
Class   		Name:  
  		Name: context
The association role 'context' references an instance of MeasurementContext class that defines resolution and measuring interval for a specific measurand.
Details:
 
Tag Value
byValuePropertyType false
Details:
Values: true,false
Default: false
Description: Create a property type that requires that the instance is encoded inline (applies to ISO 19136:2007 encoding rule). Always set to false in INSPIRE.
isCollection false
Details:
Values: true,false
Default: false
Description: Identifies the type as an object collection.
noPropertyType false
Details:
Values: true,false
Default: false
Description: Surpress creation of a standard property type that supports inline or by-reference encoding (applies to ISO 19136:2007 encoding rule). Always set to false in INSPIRE.
xsdEncodingRule iso19136_2007
Details:
Values: iso19136_2007,iso19139_2007,iso19136_2007_INSPIRE_Extensions
Default: iso19136_2007
Description: XML Schema encoding rule to apply
Constraint Type Status
uom shall be appropriate for measurand Invariant Approved
Details:
 
Object Type Connection Notes
«Type» AbstractMeasurementContext Class Generalization