{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://schema.humancellatlas.org/type/process/9.1.2/process",
  "description": "Information about a process completed in the experiment.",
  "additionalProperties": false,
  "required": [
    "describedBy",
    "schema_type",
    "process_core"
  ],
  "title": "Process",
  "name": "process",
  "type": "object",
  "properties": {
    "describedBy": {
      "description": "The URL reference to the schema.",
      "type": "string",
      "pattern": "^(http|https)://schema.(.*?)humancellatlas.org/type/process/(([0-9]{1,}.[0-9]{1,}.[0-9]{1,})|([a-zA-Z]*?))/process"
    },
    "schema_version": {
      "description": "The version number of the schema in major.minor.patch format.",
      "type": "string",
      "pattern": "^[0-9]{1,}.[0-9]{1,}.[0-9]{1,}$",
      "example": "4.6.1"
    },
    "schema_type": {
      "description": "The type of the metadata schema entity.",
      "type": "string",
      "enum": [
        "process"
      ]
    },
    "provenance": {
      "description": "Provenance information provided by the system.",
      "type": "object",
      "$ref": "https://schema.humancellatlas.org/system/1.0.4/provenance"
    },
    "process_core": {
      "description": "Core process-level information.",
      "type": "object",
      "$ref": "https://schema.humancellatlas.org/core/process/10.0.0/process_core",
      "user_friendly": "Process core"
    },
    "start_time": {
      "description": "Date and time the process started.",
      "type": "string",
      "oneOf": [
        {
          "format": "date-time"
        },
        {
          "pattern": "^((19|20)\\d\\d){1}([- \\./][01]\\d){0,1}([- \\./][0-3]\\d){0,1}$"
        }
      ],
      "user_friendly": "Start time",
      "example": "2019-01-16T12:00:00Z; 2019/01/16",
      "guidelines": "Enter the time in date-time format: yyyy-mm-ddThh:mm:ssZ."
    },
    "end_time": {
      "description": "Date and time the process ended.",
      "type": "string",
      "oneOf": [
        {
          "format": "date-time"
        },
        {
          "pattern": "^((19|20)\\d\\d){1}([- \\./][01]\\d){0,1}([- \\./][0-3]\\d){0,1}$"
        }
      ],
      "user_friendly": "End time",
      "example": "2019-01-16T12:00:00Z; 2019/01/16",
      "guidelines": "Enter the time in date-time format: yyyy-mm-ddThh:mm:ssZ."
    },
    "length_of_time": {
      "description": "Length of time the process took to execute in Length of time unit.",
      "pattern": "^[0-9]+\\.?[0-9]*-?[0-9]*\\.?[0-9]*$",
      "type": "string",
      "user_friendly": "Length of time",
      "example": "10; 55-60",
      "guidelines": "Enter a single value or a range of values separated by a hyphen."
    },
    "length_of_time_unit": {
      "description": "The unit in which Length of time is expressed.",
      "type": "object",
      "$ref": "https://schema.humancellatlas.org/module/ontology/5.3.5/time_unit_ontology",
      "user_friendly": "Length of time unit"
    },
    "type": {
      "description": "The type of process.",
      "type": "object",
      "$ref": "https://schema.humancellatlas.org/module/ontology/5.3.5/process_type_ontology",
      "user_friendly": "Process type"
    },
    "deviation_from_protocol": {
      "description": "A deviation from the protocol provided.",
      "type": "string",
      "user_friendly": "Deviation from protocol",
      "example": "Skipped ACK lysis step; Used 100um filter instead of 40um filter"
    },
    "insdc_experiment": {
      "description": "An International Nucleotide Sequence Database Collaboration (INSDC) experiment accession.",
      "type": "object",
      "$ref": "https://schema.humancellatlas.org/module/process/sequencing/2.0.0/insdc_experiment",
      "user_friendly": "INSDC experiment accession"
    }
  }
}