Need info for certain example formats.

[dpatil-fw]

1. DateTime

Why are the type/ value for only DateTime represented with an '@' symbol as shown below?

"orderDate": {
"type": "Property",
"value": {
"@type": "DateTime",
"@value": "2018-08-07T12:00:00Z"
}
}

2. Nested key-values

Should nested child members be represented as simple key-value pairs or as expanded properties with "type" : "Property" and "value": "xxx"?

Which format below is correct - a or b?

a. key-value pair

"address": {
    "type": "Property",
    "value": {
      "addressCountry": "IN",
      "addressLocality": "ABC Street"
    }
  }

b. expanded format

"address": {
    "type": "Property",
      "addressCountry": {
         "type": "Property",
         "value": "IN"
      },
      "addressLocality": {
         "type": "Property",
         "value": "ABC Street"
      }
  }

[albertoabellagarcia]

1.- Regarding the @value and @type in the type, see clause 4.5.2 in the specification of NGSI-LD (page 32)

2.- example A is right, but this is not the key-values format but normalized, key values, for example A, would be
"address": {
"addressCountry": "IN",
"addressLocality": "ABC Street"
}