Observation.json

{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "id": "http://raw.githubusercontent.com/peterataylor/om-json/master/Observation.json",
  "title": "Observation",
  "description": "An observation is an act associated with a discrete time instant or period through which a number, term or other symbol is assigned to a phenomenon. It involves application of a specified procedure, such as a sensor, instrument, algorithm or process chain. The procedure may be applied in-situ, remotely, or ex-situ with respect to the sampling location. The result of an observation is an estimate of the value of a property of some feature.",
  "type": "object",
  "properties": {
  	"@context" : { "$ref": "http://raw.githubusercontent.com/peterataylor/om-json/master/Common.json#/definitions/@context" },
    "id": {
      "title": "id",
      "description": "A unique identifier for the observation",
      "type": "string"
    },
    "type": {
      "title": "type",
      "description": "Identifies the type of observation, which determines the type of the result property",
      "type": "string"
    },
    "context": {
      "title": "context",
      "description": "links to observations that provide the context for this observation - use 'rel' for 'role'",
      "type": "array",
      "items": { "$ref": "http://raw.githubusercontent.com/peterataylor/om-json/master/Common.json#/definitions/link" },
      "minItems": 1
    },
    "phenomenonTime": {
      "title": "phenomenonTime",
      "description": "Time at which the estimate of the property that is the result of the observation is associated with the feature of interest",
      "$ref": "http://raw.githubusercontent.com/peterataylor/om-json/master/Temporal.json#/definitions/temporalPrimitive"
    },
    "observedProperty": {
      "title": "observedProperty",
      "description": "property whose value is the result of the observation",
	  "oneOf": [
		{"$ref": "http://raw.githubusercontent.com/peterataylor/om-json/master/Common.json#/definitions/link"},
		{"$ref": "http://raw.githubusercontent.com/peterataylor/om-json/master/Common.json#/definitions/vocabTerm"}
	  ]
    },
    "procedure": {
      "title": "procedure",
      "description": "procedure used in making observation. Typically a sensor or sensor-system, algorithm, computational procedure.",
	  "oneOf": [
		{ "$ref": "http://raw.githubusercontent.com/peterataylor/om-json/master/Common.json#/definitions/link" },
		{ "$ref": "http://raw.githubusercontent.com/peterataylor/om-json/master/Common.json#/definitions/vocabTerm" },
		{ "$ref": "http://raw.githubusercontent.com/adamml/om-json/master/ocean-acidification/Protocol.json" } 
	  ]
    },
    "featureOfInterest": {
      "title": "featureOfInterest",
      "description": "subject of the observation, whose type may carry the observed property",
	  "oneOf": [
		{"$ref": "http://raw.githubusercontent.com/peterataylor/om-json/master/Common.json#/definitions/link"},
		{ "$ref": "http://raw.githubusercontent.com/peterataylor/om-json/master/Common.json#/definitions/vocabTerm" }
	  ]
    },
    "samplingStrategy": {
      "title": "samplingStrategy",
      "description": "a strategy, such as a sampling feature, which mediates between the procedure and the ultimate feature of interest",
      "oneOf": [
        { "$ref": "http://raw.githubusercontent.com/peterataylor/om-json/master/Common.json#/definitions/link" },
        { "$ref": "http://raw.githubusercontent.com/peterataylor/om-json/master/Sampling.json" }     
      ]
    },
    "resultTime": {
      "title": "resultTime",
      "description": "time at which the result became available, after all processing steps were completed",
      "$ref": "http://raw.githubusercontent.com/peterataylor/om-json/master/Temporal.json#/definitions/dateTimePosition"
    },
    "result": {
      "title": "result",
      "description": "result of the observation",
      "oneOf": [
        { "$ref": "http://raw.githubusercontent.com/peterataylor/om-json/master/Common.json#/definitions/link"             },
        { "$ref": "http://raw.githubusercontent.com/peterataylor/om-json/master/Common.json#/definitions/measure"          },
        { "$ref": "http://raw.githubusercontent.com/peterataylor/om-json/master/Common.json#/definitions/vocabTerm"        },
        { "$ref": "http://raw.githubusercontent.com/peterataylor/om-json/master/Common.json#/definitions/truth"            },
        { "$ref": "http://raw.githubusercontent.com/peterataylor/om-json/master/Common.json#/definitions/count"            },
        { "$ref": "http://raw.githubusercontent.com/peterataylor/om-json/master/Common.json#/definitions/text"            },
        { "$ref": "http://raw.githubusercontent.com/peterataylor/om-json/master/Temporal.json#/definitions/temporalObject" },
        { "$ref": "http://raw.githubusercontent.com/peterataylor/om-json/master/Geometry.json#/definitions/geometryObject" },
        { "$ref": "http://raw.githubusercontent.com/peterataylor/om-json/master/TimeseriesTVP.json#/definitions/TVPairMeasure" },
        { "$ref": "http://raw.githubusercontent.com/peterataylor/om-json/master/TimeseriesTVP.json#/definitions/TVPairCategory" }
      ]
    }
  },
  "required": [ "id", "type", "result" ],
  "additionalProperties": false
}