{ "$schema":                          "https://json-schema.org/draft/2020-12/schema",
  "$id":                              "https://schemas.mpai.community/OSD/V1.5/data/BasicEventDescriptors.json",
  "title":                            "Basic Event Descriptors V1.5",
  "type":                             "object",
  "properties":                       {

    "Header":                         { "type": "string", "pattern": "^OSD-BEV-V[0-9]{1,2}[.][0-9]{1,2}$" },
    "MInstanceID":                    { "type": "string" },
    "UEnvironmentID":                 { "type": "string" },
    "BasicEventDescriptorsID":        { "type": "string" },
    "BasicEventDescriptorsSpaceTime": { "$ref": "https://schemas.mpai.community/OSD/V1.5/data/SpaceTime.json" },

    "BasicEventDescriptors":          { "type": "array", "items": { "oneOf": [ 
                                      { "$ref": "https://schemas.mpai.community/OSD/V1.5/data/EventDescriptors.json" }, 
                                      { "type": "string" } ] } },

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