big tings

registry/schema-org/DataCatalog.schema.json

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+{
+  "$schema": "https://json-schema.org/draft/2020-12/schema",
+  "$id": "schema:DataCatalog",
+  "title": "DataCatalog",
+  "description": "A collection of datasets.",
+  "type": "object",
+  "allOf": [
+    {
+      "description": "The most generic kind of creative work, including books, movies, photographs, software programs, etc.",
+      "$ref": "schema:CreativeWork"
+    }
+  ],
+  "properties": {
+    "dataset": {
+      "description": "A dataset contained in this catalog.",
+      "oneOf": [
+        { "$ref": "schema:Dataset" },
+        { "type": "array", "items": { "$ref": "schema:Dataset" } }
+      ]
+    },
+    "measurementMethod": {
+      "description": "A subproperty of [[measurementTechnique]] that can be used for specifying specific methods, in particular via [[MeasurementMethodEnum]].",
+      "oneOf": [
+        {
+          "anyOf": [
+            { "type": "string", "format": "uri" },
+            { "type": "string" },
+            { "$ref": "schema:DefinedTerm" },
+            { "$ref": "schema:MeasurementMethodEnum" }
+          ]
+        },
+        {
+          "type": "array",
+          "items": {
+            "anyOf": [
+              { "type": "string", "format": "uri" },
+              { "type": "string" },
+              { "$ref": "schema:DefinedTerm" },
+              { "$ref": "schema:MeasurementMethodEnum" }
+            ]
+          }
+        }
+      ]
+    },
+    "measurementTechnique": {
+      "description": "A technique, method or technology used in an [[Observation]], [[StatisticalVariable]] or [[Dataset]] (or [[DataDownload]], [[DataCatalog]]), corresponding to the method used for measuring the corresponding variable(s) (for datasets, described using [[variableMeasured]]; for [[Observation]], a [[StatisticalVariable]]). Often but not necessarily each [[variableMeasured]] will have an explicit representation as (or mapping to) an property such as those defined in Schema.org, or other RDF vocabularies and \"knowledge graphs\". In that case the subproperty of [[variableMeasured]] called [[measuredProperty]] is applicable.\n    \nThe [[measurementTechnique]] property helps when extra clarification is needed about how a [[measuredProperty]] was measured. This is oriented towards scientific and scholarly dataset publication but may have broader applicability; it is not intended as a full representation of measurement, but can often serve as a high level summary for dataset discovery. \n\nFor example, if [[variableMeasured]] is: molecule concentration, [[measurementTechnique]] could be: \"mass spectrometry\" or \"nmr spectroscopy\" or \"colorimetry\" or \"immunofluorescence\". If the [[variableMeasured]] is \"depression rating\", the [[measurementTechnique]] could be \"Zung Scale\" or \"HAM-D\" or \"Beck Depression Inventory\". \n\nIf there are several [[variableMeasured]] properties recorded for some given data object, use a [[PropertyValue]] for each [[variableMeasured]] and attach the corresponding [[measurementTechnique]]. The value can also be from an enumeration, organized as a [[MeasurementMetholdEnumeration]].",
+      "oneOf": [
+        {
+          "anyOf": [
+            { "type": "string", "format": "uri" },
+            { "type": "string" },
+            { "$ref": "schema:DefinedTerm" },
+            { "$ref": "schema:MeasurementMethodEnum" }
+          ]
+        },
+        {
+          "type": "array",
+          "items": {
+            "anyOf": [
+              { "type": "string", "format": "uri" },
+              { "type": "string" },
+              { "$ref": "schema:DefinedTerm" },
+              { "$ref": "schema:MeasurementMethodEnum" }
+            ]
+          }
+        }
+      ]
+    }
+  }
+}