Enhanced STA Properties

The properties objects in the respective OGC STA entities are populated with additional information that is difficult or impossible to represent with the current STA data model (OGC SensorThings API Part 1: Sensing Version 1.1).

The provided data structures use JSON-LD and are loosely based on schema.org. A corresponding JSON Schema has been created on each properties object.

Thing properties

The ThingProperties schema definition serves as a structured extension for the OGC SensorThings API (STA) Thing entity. This schema allows for the enrichment of Thing entities with critical information, such as persistent identifiers (PIDs) for the Thing itself, details about the individuals or organizations responsible for the Thing including roles and affiliations, links to projects the Thing is associated with, a collection of images for visual documentation, links to external metadata records and data distributions like SensorML documents, and relationships to other Things, such as a sensor’s relationship to a platform.

Table 1: The Thing properties

Name	Definition	Data type	Multiplicity and use
@context	JSON-LD context for defining keywords and vocabulary.	Object	One (mandatory)
@context.@version	The version of the context.	String/Number	One (mandatory)
@context.@import	Import URL for the STAMPLATE context.	String	One (mandatory)
@context.@vocab	The default vocabulary used (schema.org).	String	One (mandatory)
jsonld.id	Unique ID of the object (e.g., the URL to its representation in an application).	String	(One) mandatory
jsonld.type	The type of the object, in this case ‘ThingProperties’.	String	One (mandatory)
identifier	Another unique identifier for the object, eg. a PID.	String	Zero-to-one
responsiblePersons	A list of persons responsible for the object.	Array of Role-Objects	Zero-to-many
responsiblePersons["jsonld.type"]	The type of the object, in this case ‘Role’.	String	One (mandatory)
responsiblePersons.roleName	The name of the role (e.g., ‘Owner’).	String	Zero-to-one
responsiblePersons.definition	URL to the definition of the role.	String	Zero-to-one
responsiblePersons.responsiblePersons	A nested list of person objects fulfilling the role.	Array of Person-Objects	Zero-to-many
responsiblePersons.responsiblePersons["jsonld.id"]	Unique ID of the person (e.g., the URL to its representation in an application).	String	One (mandatory)
responsiblePersons.responsiblePersons["jsonld.type"]	The type of the object, in this case ‘Person’.	String	One (mandatory)
responsiblePersons.responsiblePersons.givenName	The person’s given name.	String	Zero-to-one
responsiblePersons.responsiblePersons.familyName	The person’s family name.	String	Zero-to-one
responsiblePersons.responsiblePersons.email	The person’s email address.	String	Zero-to-one
responsiblePersons.responsiblePersons.affiliation	The organization the person is affiliated with.	Organization-Object	Zero-to-one
responsiblePersons.responsiblePersons.affiliation["jsonld.type"]	The type of the object, in this case ‘Organization’.	String	One (mandatory)
responsiblePersons.responsiblePersons.affiliation.name	Name of the organization.	String	Zero-to-one
responsiblePersons.responsiblePersons.affiliation.identifier	Unique identifier of the organization (e.g., ROR).	String	Zero-to-one
responsiblePersons.responsiblePersons.identifier	Unique identifier of the person (e.g., ORCID).	String	Zero-to-one
partOfProjects	A list of projects this object belongs to.	Array of ResearchProject-Objects	Zero-to-many
partOfProjects["jsonld.type"]	The type of the object, in this case ‘ResearchProject’.	String	One (mandatory)
partOfProjects.name	Name of the project.	String	Zero-to-one
images	A list of images linked to the object.	Array of ImageObject-Objects	Zero-to-many
images["jsonld.type"]	The type of the object, in this case ‘ImageObject’.	String	One (mandatory)
images.caption	A short caption for the image.	String	Zero-to-one
images.contentUrl	The URL where the image can be accessed.	String	Zero-to-one
metadata	Additional Metadata describing the thing.	Dataset-Object	Zero-to-one
metadata["jsonld.type"]	The type of the object, in this case ‘Dataset’.	String	One (mandatory)
metadata.encodingType	The encoding type of the dataset. Must be one of application/pdf, http://www.opengis.net/doc/IS/SensorML/2.0, text/html	String	Zero-to-one
metadata.distribution	Information about the dataset’s distribution. Use this, if a download link is provided.	DataDownload-Object	Zero-to-one
metadata.distribution["jsonld.type"]	The type of the object, in this case ‘DataDownload’.	String	One (mandatory)
metadata.distribution.url	The URL to download the dataset.	String	Zero-to-one
metadata.text	Text representation of the metadata. Use this, if a SensorML or plain text representation should be provided.	String	Zero-to-one
sourceRelatedThings	A list of related things from which this object originates.	Array of Objects	Zero-to-many
sourceRelatedThings["jsonld.id"]	Unique ID of the related thing (e.g., the URL to its representation in an application).	String	One (mandatory)
sourceRelatedThings["jsonld.type"]	The type of the object, in this case ‘RelatedThing’.	String	One (mandatory)
sourceRelatedThings.relationRole	The role the object plays in the relationship.	Object	Zero-to-one
sourceRelatedThings.relationRole["jsonld.type"]	The type of the object, in this case ‘RelationRole’.	String	One (mandatory)
sourceRelatedThings.relationRole.name	The name of the relationship (e.g., ‘containedInPlace’).	String	Zero-to-one
sourceRelatedThings.relationRole.definition	URL to the definition of the relationship.	String	Zero-to-one
sourceRelatedThings.relationRole.inverseName	The name of the inverse relationship.	String	Zero-to-one
sourceRelatedThings.relationRole.inverseDefinition	URL to the definition of the inverse relationship.	String	Zero-to-one

Example: Additional information for a Thing, in this case a climate station.

{
  "@context": {
    "@version": 1.1,
    "@import": "stamplate.jsonld",
    "@vocab": "http://schema.org/"
  },
  "jsonld.id": "https://sensors.gfz.de/configurations/35",
  "jsonld.type": "ThingProperties",
  "identifier": "https://handle.net/12345",
  "responsiblePersons": [
    {
      "jsonld.type": "Role",
      "roleName": "Owner",
      "definition": "https://sms-cv.helmholtz.cloud/sms/cv/api/v1/contactroles/4",
      "responsiblePersons": [
        {
          "jsonld.id": "https://sensors.gfz.de/contacts/12345",
          "jsonld.type": "Person",
          "givenName": "John",
          "familyName": "Doe",
          "email": "john.doe@example.org",
          "affiliation": {
            "jsonld.type": "Organization",
            "name": "GFZ Helmholtz Centre for Geosciences",
            "identifier": "https://ror.org/04z8jg394"
          },
          "identifier": "https://orcid.org/0000-0000-0000-1234"
        }
      ]
    }
  ],
  "partOfProjects": [
    {
      "jsonld.type": "ResearchProject",
      "name": "TERENO-NO"
    }
  ],
  "images": [
    {
      "@type": "ImageObject",
      "caption": "Echo Sound Transducer at backside of Speedboat",
      "contentUrl": "https://sensors.gfz.de/backend/api/v1/configuration-attachments/2/file/IMG_20231204_144945_Echo_Sounder.jpg"
    },
    {
      "@type": "ImageObject",
      "caption": "Platform in situ",
      "contentUrl": "https://sensors.gfz.de/backend/api/v1/configuration-attachments/3/file/IMG_1451_Speedboat_platform_in_situ.jpg"
    }
  ],
  "metadata": {
    "jsonld.type": "Dataset",
    "encodingType": "http://www.opengis.net/doc/IS/SensorML/2.0",
    "distribution": {
      "jsonld.type": "DataDownload",
      "url": "https://sensors.gfz.de/backend/api/v1/devices/1/sensorml"
    }
  },
  "sourceRelatedThings": [
    {
      "jsonld.id": "https://sta.gfz.de/v1.1/Things(1)",
      "jsonld.type": "RelatedThing",
      "relationRole": {
        "jsonld.type": "RelationRole",
        "name": "containedInPlace",
        "definition": "https://schema.org/containedInPlace",
        "inverseName": "containsPlace",
        "inverseDefinition": "https://schema.org/containsPlace"
      }
    }
  ]
}

Sensor properties

The SensorProperties schema definition serves as a structured extension for the OGC SensorThings API (STA) Sensor entity. This schema definition allows for the detailed documentation of sensors, including their unique identifiers, the product group they belong to, whether they are virtual or physical, their specific model and manufacturer details, serial numbers, and importantly, information about the responsible persons, complete with their roles, affiliations, and contact information.

Table 2: The Sensor properties

Name	Description	Datatype	Multiplicity
@context	JSON-LD context for defining keywords and vocabulary.	Object	One (mandatory)
@context.@version	The version of the context.	Number	One (mandatory)
@context.@import	Import URL for the STAMPLATE context.	String	One (mandatory)
@context.@vocab	The default vocabulary used.	String	One (mandatory)
jsonld.id	Unique ID of the sensor (e.g., the URL to its representation in an application).	String	One (mandatory)
jsonld.type	The type of the object, in this case ‘SensorProperties’.	String	One (mandatory)
identifier	Another unique identifier for the object, e.g., a PID.	String	Zero-to-one
isVariantOf	Describes the product group the sensor belongs to.	ProductGroup-Object	Zero-to-one
isVariantOf["jsonld.type"]	The type of the object, in this case ‘ProductGroup’.	String	One (mandatory)
isVariantOf.name	The name of the product group.	String	Zero-to-one
isVariantOf.definition	URL to the definition of the product group.	String	Zero-to-one
isVirtual	Indicates if the sensor is virtual.	Boolean	Zero-to-one
model	The model name of the sensor.	String	Zero-to-one
manufacturer	Information about the manufacturer of the sensor.	Organization-Object	Zero-to-one
manufacturer["jsonld.type"]	The type of the object, in this case ‘Organization’.	String	One (mandatory)
manufacturer.name	The name of the manufacturer.	String	Zero-to-one
manufacturer.definition	URL to the definition of the manufacturer.	String	Zero-to-one
serialNumber	The serial number of the sensor.	String	Zero-to-one
responsiblePersons	A list of persons responsible for the object.	Array of Role-Objects	Zero-to-many
responsiblePersons["jsonld.type"]	The type of the object, in this case ‘Role’.	String	One (mandatory)
responsiblePersons.roleName	The name of the role (e.g., ‘Owner’).	String	Zero-to-one
responsiblePersons.definition	URL to the definition of the role.	String	Zero-to-one
responsiblePersons.responsiblePersons	A nested list of person objects fulfilling the role.	Array of Person-Objects	Zero-to-many
responsiblePersons.responsiblePersons["jsonld.id"]	Unique ID of the person (e.g., the URL to its representation in an application).	String	One (mandatory)
responsiblePersons.responsiblePersons["jsonld.type"]	The type of the object, in this case ‘Person’.	String	One (mandatory)
responsiblePersons.responsiblePersons.givenName	The person’s given name.	String	Zero-to-one
responsiblePersons.responsiblePersons.familyName	The person’s family name.	String	Zero-to-one
responsiblePersons.responsiblePersons.email	The person’s email address.	String	Zero-to-one
responsiblePersons.responsiblePersons.affiliation	The organization the person is affiliated with.	Organization-Object	Zero-to-one
responsiblePersons.responsiblePersons.affiliation["jsonld.type"]	The type of the object, in this case ‘Organization’.	String	One (mandatory)
responsiblePersons.responsiblePersons.affiliation.name	The name of the organization.	String	Zero-to-one
responsiblePersons.responsiblePersons.affiliation.identifier	A unique identifier for the organization (e.g., ROR).	String	Zero-to-one
responsiblePersons.responsiblePersons.identifier	A unique identifier for the person (e.g., ORCID).	String	Zero-to-one

Example: Additional information for a Sensor, in this case a Pressure Transducer.

{
  "@context": {
    "@version": 1.1,
    "@import": "stamplate.jsonld",
    "@vocab": "http://schema.org/"
  },
  "jsonld.id": "https://sensors.gfz.de/devices/786",
  "jsonld.type": "SensorProperties",
  "identifier": "https://handle.net/1234567",
  "isVariantOf": {
    "jsonld.type": "ProductGroup",
    "name": "Pressure transducer",
    "definition": "https://sms-cv.helmholtz.cloud/sms/cv/api/v1/equipmenttypes/42"
  },
  "isVirtual": false,
  "model": "AdconBP1",
  "manufacturer": {
    "jsonld.type": "Organization",
    "name": "OTT HydroMet",
    "definition": "https://sms-cv.helmholtz.cloud/sms/cv/api/v1/manufacturers/48"
  },
  "serialNumber": "12345",
  "responsiblePersons": [
    {
      "jsonld.type": "Role",
      "roleName": "Owner",
      "definition": "https://sms-cv.helmholtz.cloud/sms/cv/api/v1/contactroles/4",
      "responsiblePersons": [
        {
          "jsonld.id": "https://sensors.gfz.de/contacts/12345",
          "jsonld.type": "Person",
          "givenName": "Jane",
          "familyName": "Doe",
          "email": "jane.doe@example.org",
          "affiliation": {
            "jsonld.type": "Organization",
            "name": "GFZ Helmholtz Centre for Geosciences",
            "identifier": "https://ror.org/04z8jg394"
          },
          "identifier": ""
        }
      ]
    }
  ]
}

Datastream properties

The DatastreamProperties schema definition serves as a structured extension for the OGC SensorThings API (STA) Datastream entity. It allows for a more comprehensive description of a datastream by providing details about its observing procedure, including specific parameters like the aggregation period and its unit, as well as defining the measurement properties such as resolution, accuracy, and operational range, complete with their respective units. Furthermore, this schema accommodates information regarding the license under which the data is provided, the mobility, specific deployment details including timestamps and spatial offsets, and the data source from which the datastream originates.

Table 3: The Datastream properties

Name	Definition	Data type	Multiplicity and use
@context	JSON-LD context for defining keywords and vocabulary.	Object	One (mandatory)
@context.@version	The version of the context.	String/Number	One (mandatory)
@context.@import	Import URL for the STAMPLATE context.	String	One (mandatory)
@context.@vocab	The default vocabulary used (schema.org).	String	One (mandatory)
jsonld.id	Unique ID of the datastream (e.g., the URL to its representation in an application).	String	One (mandatory)
jsonld.type	The type of the object, in this case ‘DatastreamProperties’.	String	One (mandatory)
observingProcedure	Details about the observing procedure.	Object	Zero-to-one
observingProcedure["jsonld.type"]	The type of the object, in this case ‘ObservingProcedure’.	String	One (mandatory)
observingProcedure.name	The name of the procedure.	String	Zero-to-one
observingProcedure.description	A description of the procedure.	String	Zero-to-one
observingProcedure.definition	URL to the definition of the procedure.	String	Zero-to-one
observingProcedure.properties	Additional properties of the procedure.	Object	Zero-to-one
observingProcedure.properties.period	The duration of the observation period.	Number	Zero-to-one
observingProcedure.properties.unitOfPeriod	The unit for the observation period.	Object	Zero-to-one
observingProcedure.properties.unitOfPeriod["jsonld.type"]	The type of the object, in this case ‘Unit’.	String	One (mandatory)
observingProcedure.properties.unitOfPeriod.name	The name of the unit.	String	Zero-to-one
observingProcedure.properties.unitOfPeriod.symbol	The symbol for the unit.	String	Zero-to-one
observingProcedure.properties.unitOfPeriod.definition	URL to the definition of the unit.	String	Zero-to-one
measurementProperties	Properties of the measurement itself.	Object	Zero-to-one
measurementProperties["jsonld.type"]	The type of the object, in this case ‘MeasurementProperties’.	String	One (mandatory)
measurementProperties.measurementResolution	The resolution of the measurement.	Number	Zero-to-one
measurementProperties.unitOfMeasurementResolution	The unit for the measurement resolution.	Object	Zero-to-one
measurementProperties.unitOfMeasurementResolution["jsonld.type"]	The type of the object, in this case ‘Unit’.	String	One (mandatory)
measurementProperties.unitOfMeasurementResolution.name	The name of the unit.	String	Zero-to-one
measurementProperties.unitOfMeasurementResolution.symbol	The symbol for the unit.	String	Zero-to-one
measurementProperties.unitOfMeasurementResolution.definition	URL to the definition of the unit.	String	Zero-to-one
measurementProperties.measurementAccuracy	The accuracy of the measurement.	Number	Zero-to-one
measurementProperties.unitOfMeasurementAccuracy	The unit for the measurement accuracy.	Object	Zero-to-one
measurementProperties.unitOfMeasurementAccuracy["jsonld.type"]	The type of the object, in this case ‘Unit’.	String	One (mandatory)
measurementProperties.unitOfMeasurementAccuracy.name	The name of the unit.	String	Zero-to-one
measurementProperties.unitOfMeasurementAccuracy.symbol	The symbol for the unit.	String	Zero-to-one
measurementProperties.unitOfMeasurementAccuracy.definition	URL to the definition of the unit.	String	Zero-to-one
measurementProperties.operationRange	The operational range of the measurement.	Array of Numbers	Zero-to-one
measurementProperties.unitOfOperationRange	The unit for the operational range.	Object	Zero-to-one
measurementProperties.unitOfOperationRange["jsonld.type"]	The type of the object, in this case ‘Unit’.	String	One (mandatory)
measurementProperties.unitOfOperationRange.name	The name of the unit.	String	Zero-to-one
measurementProperties.unitOfOperationRange.symbol	The symbol for the unit.	String	Zero-to-one
measurementProperties.unitOfOperationRange.definition	URL to the definition of the unit.	String	Zero-to-one
license	Information about the license for the data.	CreativeWork-Object	Zero-to-one
license["jsonld.type"]	The type of the object, in this case ‘CreativeWork’.	String	One (mandatory)
license.name	The name of the license.	String	Zero-to-one
license.url	The URL to the full license text.	String	Zero-to-one
license.provider	The provider of the license.	String	Zero-to-one
providerMobility	The mobility of the data provider (e.g., ‘static’).	String	Zero-to-one
deployment	Details about the deployment of the datastream.	Object	Zero-to-one
deployment["jsonld.id"]	Unique ID of the deployment (e.g., the URL to its representation in an application).	String	One (mandatory)
deployment["jsonld.type"]	The type of the object, in this case ‘Deployment’.	String	One (mandatory)
deployment.deploymentTime	The time of deployment.	String	Zero-to-one
deployment.properties	Additional properties of the deployment.	Object	Zero-to-one
deployment.properties["jsonld.type"]	The type of the object, in this case ‘DeploymentProperties’.	String	One (mandatory)
deployment.properties.offsets	The offsets of the deployment.	Object	Zero-to-one
deployment.properties.offsets["jsonld.type"]	The type of the object, in this case ‘Offset’.	String	One (mandatory)
deployment.properties.offsets.x	The x-offset.	Number	Zero-to-one
deployment.properties.offsets.y	The y-offset.	Number	Zero-to-one
deployment.properties.offsets.z	The z-offset.	Number	Zero-to-one
deployment.properties.unitOfOffsets	The unit for the offsets.	Object	Zero-to-one
deployment.properties.unitOfOffsets["jsonld.type"]	The type of the object, in this case ‘Unit’.	String	One (mandatory)
deployment.properties.unitOfOffsets.name	The name of the unit.	String	Zero-to-one
deployment.properties.unitOfOffsets.symbol	The symbol for the unit.	String	Zero-to-one
deployment.properties.unitOfOffsets.definition	URL to the definition of the unit.	String	Zero-to-one
dataSource	A descriptive string indicating the source of the data.	String	Zero-to-one

Example: Additional information for a Datastream

{
  "@context": {
    "@version": 1.1,
    "@import": "stamplate.jsonld",
    "@vocab": "http://schema.org/"
  },
  "jsonld.id": "https://sensors.gfz.de/datastream-links/6",
  "jsonld.type": "DatastreamProperties",
  "observingProcedure": {
    "jsonld.type": "ObservingProcedure",
    "name": "mean",
    "description": "the arithmetic mean value",
    "definition": "https://sms-cv.helmholtz.cloud/sms/cv/api/v1/aggregationtypes/1",
    "properties": {
      "period": 600,
      "unitOfPeriod": {
        "jsonld.type": "Unit",
        "name": "seconds",
        "symbol": "s",
        "definition": "https://sms-cv.helmholtz.cloud/sms/cv/api/v1/units/63"
      }
    }
  },
  "measurementProperties": {
    "jsonld.type": "MeasurementProperties",
    "measurementResolution": 0.2,
    "unitOfMeasurementResolution": {
      "jsonld.type": "Unit",
      "name": "seconds",
      "symbol": "sec",
      "definition": "https://sms-cv.helmholtz.cloud/sms/cv/api/v1/units/58"
    },
    "measurementAccuracy": 1.0,
    "unitOfMeasurementAccuracy": {
      "jsonld.type": "Unit",
      "name": "millibars",
      "symbol": "mbar",
      "definition": "https://sms-cv.helmholtz.cloud/sms/cv/api/v1/units/64"
    },
    "operationRange": [
      500.0,
      1500.0
    ],
    "unitOfOperationRange": {
      "jsonld.type": "Unit",
      "name": "millibars",
      "symbol": "mbar",
      "definition": "https://sms-cv.helmholtz.cloud/sms/cv/api/v1/units/64"
    }
  },
  "license": {
    "jsonld.type": "CreativeWork",
    "name": "GPLv3",
    "url": "https://www.gnu.org/licenses/gpl-3.0.txt",
    "provider": "The HMC-STAMPLATE project consortium"
  },
  "providerMobility": "static",
  "deployment": {
    "jsonld.id": "https://sensors.gfz.de/configurations/35/platforms-and-devices?deviceMountAction=182",
    "jsonld.type": "Deployment",
    "deploymentTime": "2020-01-01T00:50-03:00",
    "properties": {
      "jsonld.type": "DeploymentProperties",
      "offsets": {
        "jsonld.type": "Offset",
        "x": -3,
        "y": 2,
        "z": 10
      },
      "unitOfOffsets": {
        "jsonld.type": "Unit",
        "name": "meters",
        "symbol": "m",
        "definition": "https://sms-cv.helmholtz.cloud/sms/cv/api/v1/units/63"
      }
    }
  },
  "dataSource": "ftp/uploads01"
}

Location properties

The LocationProperties schema definition serves as a structured extension for the OGC SensorThings API (STA) Location entity.

No specific properties have been defined so far.

Table 4: The Location properties

Name	Definition	Data type	Multiplicity and use
@context	JSON-LD context for defining keywords and vocabulary.	Object	One (mandatory)
@context.@version	The version of the context.	String/Number	One (mandatory)
@context.@import	Import URL for the STAMPLATE context.	String	One (mandatory)
@context.@vocab	The default vocabulary used (schema.org).	String	One (mandatory)
jsonld.id	Unique ID of the location (e.g., the URL to its representation in an application).	String	One (mandatory)
jsonld.type	The type of the object, in this case ‘LocationProperties’.	String	One (mandatory)

Example: Additional information for a Location

{
  "@context": {
    "@version": 1.1,
    "@import": "stamplate.jsonld",
    "@vocab": "http://schema.org/"
  },
  "jsonld.id": "https://sensors.gfz.de/configurations/35/locations/static-location-actions/15",
  "jsonld.type": "LocationProperties"
}

ObservedProperty properties

The ObservedPropertyProperties schema definition serves as a structured extension for the OGC SensorThings API (STA) ObservedProperty entity.

No specific properties have been defined so far.

Table 5: The Observed Property properties

Name	Definition	Data type	Multiplicity and use
@context	JSON-LD context for defining keywords and vocabulary.	Object	One (mandatory)
@context.@version	The version of the context.	String/Number	One (mandatory)
@context.@import	Import URL for the STAMPLATE context.	String	One (mandatory)
@context.@vocab	The default vocabulary used (schema.org).	String	One (mandatory)
jsonld.id	Unique ID of the Observed Property (e.g., the URL to its representation in an application).	String	One (mandatory)
jsonld.type	The type of the object, in this case ‘ObservedPropertyProperties’.	String	One (mandatory)

Example: Additional information for an ObservedProperty

{
  "@context": {
    "@version": 1.1,
    "@import": "stamplate.jsonld",
    "@vocab": "http://schema.org/"
  },
  "jsonld.id": "https://sensors.gfz.de/cv/api/v1/measuredquantities/32/",
  "jsonld.type": "ObservedPropertyProperties"
}

Observation properties

The ObservationProperties schema definition serves as a structured extension for the OGC SensorThings API (STA) Observation entity.

Table 6: The Observation properties

Name	Definition	Data type	Multiplicity and use
@context	JSON-LD context for defining keywords and vocabulary.	Object	One (mandatory)
@context.@version	The version of the context.	String/Number	One (mandatory)
@context.@import	Import URL for the STAMPLATE context.	String	One (mandatory)
@context.@vocab	The default vocabulary used (schema.org).	String	One (mandatory)
jsonld.type	The type of the object, in this case ‘ObservationProperties’.	String	One (mandatory)
dataSource	A descriptive string indicating the source of the observation data.	String	Zero-to-one

Example: Additional information for an Observation

{
  "@context": {
    "@version": 1.1,
    "@import": "stamplate.jsonld",
    "@vocab": "http://schema.org/"
  },
  "jsonld.type": "ObservationProperties",
  "dataSource": "file01.csv"
}

Observation ResultQuality properties

[!WARNING] Work in progress

Table 7: The Observation Result Quality properties

Name	Definition	Data type	Multiplicity and use
@context	JSON-LD context for defining keywords and vocabulary.	Object	One (mandatory)
@context.@version	The version of the context.	String/Number	One (mandatory)
@context.@import	Import URL for the STAMPLATE context.	String	One (mandatory)
@context.@vocab	The default vocabulary used (schema.org).	String	One (mandatory)
annotations	A list of annotations for the object.	Array of Objects	Zero-to-many
annotations["jsonld.id"]	Unique ID of the annotation.	String	Zero-to-one
annotations["jsonld.type"]	The type of the annotation, in this case ‘ObservationResultQuality’.	String	One (mandatory)
annotations.annotation	The value of the annotation.	String	Zero-to-one
annotations.annotationType	The type of the annotation (e.g., ‘SaQC’, ‘generic’).	String	Zero-to-one
annotations.properties	Additional properties of the annotation.	Object	Zero-to-one
annotations.properties.version	The version of the annotation.	String	Zero-to-one
annotations.properties.measure	The measure used for the annotation.	String	Zero-to-one
annotations.properties.definition	URL to the definition of measure.	String	Zero-to-one

Example: Additional information for the ResultQuality

{
  "@context": {
    "@version": 1.1,
    "@import": "stamplate.jsonld",
    "@vocab": "http://schema.org/"
  },
  "annotations": [
    {
      "@id": "https://rdm-software.pages.ufz.de/saqc/",
      "@type": "ObservationResultQuality",
      "annotation": "99",
      "annotationType": "SaQC",
      "properties": {
        "version": "2.6",
        "measure": "flagUniLOF",
        "definition": "https://url/to/config"
      }
    },
    {
      "@id": "https://tereno.net/quality",
      "@type": "ObservationResultQuality",
      "annotation": "baddata",
      "annotationType": "generic"
    },
    {
      "@id": "https://tereno.net/quality",
      "@type": "ObservationResultQuality",
      "annotation": "Analysis error",
      "annotationType": "specific"
    }
  ]
}