{ "$schema":                "https://json-schema.org/draft/2020-12/schema",
  "$id":                    "https://schemas.mpai.community/MMM4/V2.2/data/Item.json",
  "title":                  "Process V2.2",
  "type":                   "object",
  "additionalProperties":   false,
  "required":               [ "ItemID" ],
  "properties":             {

    "Header":               { "type": "string", "pattern": "^MMM-ITM-V[0-9],{1,2},[.][0-9],{1,2}$" },
    "MInstanceID":          { "type": "string" },
    "MEnvironmentID":       { "type": "string" },
    "ItemID":               { "type": "string" },
    "ItemTime":             { "$ref": "https://schemas.mpai.community/OSD/V1.5/data/SpaceTime.json" },
    "SourceItemID":         { "type": "string", "description": "Identifier of the Item that spawned this Item." },

    "ItemData":             { "type": "array", "items": { "anyOf": [
                            { "type": "object", "properties": {
      "DataLength":         { "type": "integer" },
      "DataURI":            { "type": "string", "format": "uri" } } },
                            { "type": "object", "properties": {
      "Data":               { "type": "string" } } },
                            { "type": "object", "properties": {
      "DataID":             { "type": "string" } } } ] } },

    "ItemQualifier":        { "$ref": "https://schemas.mpai.community/TFA/V1.5/data/AnyQualifier.json" },

    "ICapabilities":        { "description": "Either an ItemCapabilities object or its ID string.", "oneOf": [
                            { "$ref": "https://schemas.mpai.community/MMM4/V2.2/data/Capabilities.json#/$defs/ItemCapabilities" },
                            { "type": "string" } ] },

    "ItemStatus":           { "type": "string", "enum": [ "Model", "Final" ] },

    "DataXMData":           { "$ref": "https://schemas.mpai.community/PTF/V1.0/data/DataExchangeMetadata.json" },
    "DescrMetadata":        { "type": "string", "maxLength": 2048 } },

  "allOf": [                { "if": { "properties": { "ProcessType": { "const": "User" } }, "required": [ "ProcessType" ] },
                              "then": { "properties": { "HumanID": { "type": "string" } } } } ] }