{
  "$schema": "http://json-schema.org/draft-07/schema#",
  "$id": "https://prism-framework.org/schema/1.0/prism-d/domains",
  "title": "PRISM/D — D: Domains",
  "description": "Data ownership contexts: bounded data domains, versioned data products, and raw or intermediate datasets.",
  "type": "object",
  "required": ["prism_d"],
  "additionalProperties": false,
  "properties": {
    "prism_d": {
      "type": "object",
      "required": ["layer", "schema_version"],
      "additionalProperties": false,
      "properties": {
        "layer": { "const": "domains" },
        "schema_version": { "type": "string", "pattern": "^\\d+\\.\\d+$" },
        "temporal_state": { "type": "string", "enum": ["baseline", "transition", "target"] },
        "as_of": { "type": "string", "format": "date" },
        "label": { "type": "string" }
      }
    },
    "data_domains": {
      "type": "array",
      "description": "Bounded data ownership contexts. A domain owns one or more datasets and is accountable for their quality, contracts, and compliance.",
      "items": {
        "type": "object",
        "required": ["id", "name", "owner", "domain_type", "data_classification"],
        "additionalProperties": false,
        "properties": {
          "id": { "type": "string" },
          "name": { "type": "string" },
          "description": { "type": "string" },
          "owner": {
            "type": "string",
            "description": "Team or individual accountable for this domain."
          },
          "domain_type": {
            "type": "string",
            "enum": ["source", "derived", "aggregate", "event"],
            "description": "source — raw operational data; derived — transformed from source; aggregate — merged from multiple domains; event — event-stream originated."
          },
          "data_classification": {
            "type": "string",
            "enum": ["public", "internal", "confidential", "restricted"],
            "description": "Highest sensitivity classification of data within this domain."
          },
          "data_sensitivity": {
            "type": "array",
            "items": {
              "type": "string",
              "enum": ["pii", "spii", "phi", "pci"]
            },
            "description": "Specific sensitivity categories present in this domain."
          },
          "compliance_frameworks": {
            "type": "array",
            "items": {
              "type": "object",
              "required": ["framework"],
              "additionalProperties": false,
              "properties": {
                "framework": { "type": "string" },
                "scope": { "type": "string" },
                "status": {
                  "type": "string",
                  "enum": ["applicable", "certified", "in-progress", "exempt"]
                }
              }
            }
          },
          "depends_on": {
            "type": "array",
            "items": { "type": "string" },
            "description": "IDs of upstream domains this domain derives data from."
          },
          "status": {
            "type": "string",
            "enum": ["active", "planned", "deprecated", "retired"]
          },
          "maturity": {
            "type": "string",
            "enum": ["initial", "developing", "defined", "managed", "optimizing"],
            "description": "Data governance maturity of this domain (ownership clarity, contract discipline, quality controls), independent of status."
          },
          "temporal_state": {
            "type": "string",
            "enum": ["baseline", "transition", "target"]
          },
          "tags": {
            "type": "array",
            "items": { "type": "string" }
          },
          "notes": { "type": "string" }
        }
      }
    },
    "data_products": {
      "type": "array",
      "description": "Versioned datasets served to external consumers. A data product has an explicit contract, SLA, and owner.",
      "items": {
        "type": "object",
        "required": ["id", "name", "owner", "data_classification"],
        "additionalProperties": false,
        "properties": {
          "id": { "type": "string" },
          "name": { "type": "string" },
          "description": { "type": "string" },
          "owner": { "type": "string" },
          "version": {
            "type": "string",
            "description": "Current published version (semver or date-based)."
          },
          "data_classification": {
            "type": "string",
            "enum": ["public", "internal", "confidential", "restricted"]
          },
          "data_sensitivity": {
            "type": "array",
            "items": {
              "type": "string",
              "enum": ["pii", "spii", "phi", "pci"]
            }
          },
          "domain_id": {
            "type": "string",
            "description": "The data domain that owns and produces this product."
          },
          "consumers": {
            "type": "array",
            "items": { "type": "string" },
            "description": "Teams or systems consuming this data product."
          },
          "contract_id": {
            "type": "string",
            "description": "Reference to the data contract governing this product."
          },
          "depends_on": {
            "type": "array",
            "items": { "type": "string" }
          },
          "status": {
            "type": "string",
            "enum": ["active", "planned", "deprecated", "retired"]
          },
          "temporal_state": {
            "type": "string",
            "enum": ["baseline", "transition", "target"]
          },
          "tags": {
            "type": "array",
            "items": { "type": "string" }
          },
          "notes": { "type": "string" }
        }
      }
    },
    "datasets": {
      "type": "array",
      "description": "Raw or intermediate datasets owned by a domain. Not yet productized.",
      "items": {
        "type": "object",
        "required": ["id", "name", "owner", "data_classification"],
        "additionalProperties": false,
        "properties": {
          "id": { "type": "string" },
          "name": { "type": "string" },
          "description": { "type": "string" },
          "owner": { "type": "string" },
          "domain_id": { "type": "string" },
          "data_classification": {
            "type": "string",
            "enum": ["public", "internal", "confidential", "restricted"]
          },
          "data_sensitivity": {
            "type": "array",
            "items": {
              "type": "string",
              "enum": ["pii", "spii", "phi", "pci"]
            }
          },
          "format": {
            "type": "string",
            "description": "Physical format (e.g. parquet, delta, csv, json)."
          },
          "platform_id": {
            "type": "string",
            "description": "Reference to the platform where this dataset is stored."
          },
          "compliance_frameworks": {
            "type": "array",
            "items": {
              "type": "object",
              "required": ["framework"],
              "additionalProperties": false,
              "properties": {
                "framework": { "type": "string" },
                "scope": { "type": "string" },
                "status": {
                  "type": "string",
                  "enum": ["applicable", "certified", "in-progress", "exempt"]
                }
              }
            }
          },
          "depends_on": {
            "type": "array",
            "items": { "type": "string" }
          },
          "status": {
            "type": "string",
            "enum": ["active", "planned", "deprecated", "retired"]
          },
          "temporal_state": {
            "type": "string",
            "enum": ["baseline", "transition", "target"]
          },
          "tags": {
            "type": "array",
            "items": { "type": "string" }
          },
          "notes": { "type": "string" }
        }
      }
    }
  }
}