Location/Organization identifier types as separate/multiple schema fields?

[shuyag]

Wanted to bring up a point from a discussion with @trubens71 around how we specify types of identifiers, in the off chance that two identifiers have the same kind of syntax/format—and because we're starting to add more identifiers, I'm wondering how we might future proof this.

Here's what I'm considering—in the code snippet below, we have

  "organizations": [
    {
      "guid": "91582fdd-6f72-47cf-a113-f68fe4e74865",
      "organization-type": "retailer",
      "language": "en",
      "organizational-identifier": "lei:3538002LJMRZ83SU0B85"
    },
    {
      "guid": "91582fdd-6f72-47cf-a113-f68fe4e74866",
      "organization-type": "retailer",
      "language": "en",
      "organizational-identifier": "lei:353800ZCXKHDPY0N5218"
    }
  ],

In this example, we have a concatenation lei:353800ZCXKHDPY0N5218. A couple of questions come up for me here.

1. Concatenation, or separate schema field? Concatenation would look like what we have above. Separate schema field would look like this:

  "organizations": [
    {
      "guid": "91582fdd-6f72-47cf-a113-f68fe4e74865",
      "organization-type": "retailer",
      "language": "en",
      "identifier-type": "lei",
      "organizational-identifier": "3538002LJMRZ83SU0B85"
    },
    {
      "guid": "91582fdd-6f72-47cf-a113-f68fe4e74866",
      "organization-type": "retailer",
      "language": "en",
      "identifier-type": "lei",
      "organizational-identifier": "353800ZCXKHDPY0N5218"
    }
  ],

This brings up an interesting case around how if an identifier-type can fulfill both the organizational and the locational identifiers, then either can be used here. Having an identifier-type would also imply having and maintaining a table of all of the organizational identifiers allowed.

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2. Are multiple identifiers allowed? The single identifier is in all of the examples we've seen before, but the example below shows what this might look like with a PermID—is it a bad idea to allow two different organizational identifiers under one guid?

  "organizations": [
    {
      "guid": "91582fdd-6f72-47cf-a113-f68fe4e74865",
      "organization-type": "retailer",
      "language": "en",
      "identifier-type": "lei",
      "organizational-identifier": "3538002LJMRZ83SU0B85"
      "identifier-type": "permID",
      "organizational-identifier": "5033562807"
    },
    {
      "guid": "91582fdd-6f72-47cf-a113-f68fe4e74866",
      "organization-type": "retailer",
      "language": "en",
      "identifier-type": "lei",
      "organizational-identifier": "353800ZCXKHDPY0N5218"
    }
  ],

Would love to hear thoughts, particularly if @vasgat has a specific reason for the concatenation format!