Schema documentation for component diggs:SampleDesignScope

Which population a sample design's activity draws from, and how densely or in what pattern: the sample-design counterpart of diggs:SFDesignScopeType. Two independent questions: where from (a zone, one or more sampling-feature designs, or one or more source samples or sample designs) and how many or what pattern (a count, an interval, explicit positions or a stride). Population selection is not restated here: "all boreholes", "a specific one" and "based on zone" are what diggs:SFDesignScopeType states on the sampling-feature design itself, and sourceFeatureRef cites that design rather than repeating its zone, count and position logic. zone is also available directly, for scoping straight to a region without an intermediate sampling-feature design to cite. There are two population kinds because they are different relations: a sample collected from a sampling feature (sourceFeatureRef) is a different fact from a sample subsampled or aggregated from another sample or sample design (sourceSampleRef, typed diggs:FractionalReferenceType so that a subsample can state what percentage of its source it takes). The selection choice is optional and can be absent: absence means every member of the population, or one per referenced feature, which is the natural reading for "aggregate all bulk samples from these three test pits".

<diggs:SampleDesignScope gml:id="" xmlns:diggs="http://diggsml.org/schemas/3" xmlns:gml="http://www.opengis.net/gml/3.2"> <gml:description xlink:href="" nilReason="">{0,1}</gml:description> <gml:identifier codeSpace="">{0,1}</gml:identifier> <diggs:zone xlink:href="" nilReason="" owns="false">{1,1}</diggs:zone> <diggs:sourceFeatureRef xlink:href="" identifierRef="" nilReason="" owns="false">{1,unbounded}</diggs:sourceFeatureRef> <diggs:sourceSampleRef xlink:href="" identifierRef="" nilReason="" owns="false" percentage="">{1,unbounded}</diggs:sourceSampleRef> <diggs:sampleCount>{1,1}</diggs:sampleCount> <diggs:samplingInterval xlink:href="" nilReason="">{1,1}</diggs:samplingInterval> <diggs:samplingPosition xlink:href="" nilReason="">{1,1}</diggs:samplingPosition> <diggs:selectionStride>{1,1}</diggs:selectionStride> </diggs:SampleDesignScope>

Database handle for the object. It is of XML type ID, so is constrained to be unique in the XML document within which it occurs. An external identifier for the object in the form of a URI may be constructed using standard XML and XPointer methods. This is done by concatenating the URI for the document, a fragment separator, and the value of the id attribute.

<element name="SampleDesignScope" type="diggs:SampleDesignScopeType">
  <annotation>
    <documentation>Which population a sample design's activity draws from, and how densely or in what pattern: the sample-design counterpart of diggs:SFDesignScopeType. Two independent questions: where from (a zone, one or more sampling-feature designs, or one or more source samples or sample designs) and how many or what pattern (a count, an interval, explicit positions or a stride). Population selection is not restated here: "all boreholes", "a specific one" and "based on zone" are what diggs:SFDesignScopeType states on the sampling-feature design itself, and sourceFeatureRef cites that design rather than repeating its zone, count and position logic. zone is also available directly, for scoping straight to a region without an intermediate sampling-feature design to cite. There are two population kinds because they are different relations: a sample collected from a sampling feature (sourceFeatureRef) is a different fact from a sample subsampled or aggregated from another sample or sample design (sourceSampleRef, typed diggs:FractionalReferenceType so that a subsample can state what percentage of its source it takes). The selection choice is optional and can be absent: absence means every member of the population, or one per referenced feature, which is the natural reading for "aggregate all bulk samples from these three test pits".</documentation>
  </annotation>
</element>

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