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{
  "$schema": "http://json-schema.org/draft-04/schema#",
  "$anchor": "cdm.observable.event",
  "type": "object",
  "title": "Observation",
  "description": "Defines a single, numerical value that was observed in the marketplace. Observations of market data are made independently to business events or trade life-cycle events, so data instances of Observation can be created independently of any other model type, hence it is annotated as a root type. Observations will be broadly reused in many situations, so references to Observation are supported via the 'key' annotation.",
  "properties": {
    "observedValue": {
      "description": "Specifies the observed value as a number.",
      "$ref": "cdm-observable-asset-Price.schema.json"
    },
    "observationIdentifier": {
      "description": "Represents the observation was made i.e. how to uniquely identify the observed value among the population of all available market data.",
      "$ref": "cdm-observable-event-ObservationIdentifier.schema.json"
    }
  },
  "required": [
    "observedValue",
    "observationIdentifier"
  ]
}