{
  "warehouse": {
    "platform": "Snowflake",
    "account": "xy12345.us-east-1",
    "database": "ANALYTICS_DW"
  },
  "lineage": {
    "datasets": [
      {
        "id": "raw.customers",
        "type": "table",
        "database": "ANALYTICS_DW",
        "schema": "RAW",
        "name": "CUSTOMERS",
        "description": "Raw customer data from CRM",
        "columns": [
          {"name": "CUSTOMER_ID", "type": "NUMBER", "isPrimaryKey": true},
          {"name": "EMAIL", "type": "VARCHAR", "pii": true},
          {"name": "NAME", "type": "VARCHAR"},
          {"name": "CREATED_AT", "type": "TIMESTAMP_NTZ"},
          {"name": "SOURCE_SYSTEM", "type": "VARCHAR"}
        ],
        "tags": ["pii", "raw"],
        "owner": "data-platform-team"
      },
      {
        "id": "raw.transactions",
        "type": "table",
        "database": "ANALYTICS_DW",
        "schema": "RAW",
        "name": "TRANSACTIONS",
        "description": "Raw transaction events from payment gateway",
        "columns": [
          {"name": "TRANSACTION_ID", "type": "VARCHAR", "isPrimaryKey": true},
          {"name": "CUSTOMER_ID", "type": "NUMBER", "isForeignKey": true, "references": "raw.customers.CUSTOMER_ID"},
          {"name": "AMOUNT", "type": "NUMBER"},
          {"name": "CURRENCY", "type": "VARCHAR"},
          {"name": "TRANSACTION_DATE", "type": "DATE"},
          {"name": "STATUS", "type": "VARCHAR"}
        ],
        "tags": ["financial", "raw"],
        "owner": "data-platform-team"
      },
      {
        "id": "raw.products",
        "type": "table",
        "database": "ANALYTICS_DW",
        "schema": "RAW",
        "name": "PRODUCTS",
        "description": "Product catalog from inventory system"
      },
      {
        "id": "staging.customers_cleaned",
        "type": "view",
        "database": "ANALYTICS_DW",
        "schema": "STAGING",
        "name": "CUSTOMERS_CLEANED",
        "description": "Deduplicated and cleaned customer records",
        "transformation": "DEDUP + CLEAN + VALIDATE",
        "owner": "analytics-engineering"
      },
      {
        "id": "staging.transactions_enriched",
        "type": "view",
        "database": "ANALYTICS_DW",
        "schema": "STAGING",
        "name": "TRANSACTIONS_ENRICHED",
        "description": "Transactions with currency conversion and status mapping",
        "transformation": "ENRICH + CONVERT + MAP"
      },
      {
        "id": "marts.dim_customer",
        "type": "table",
        "database": "ANALYTICS_DW",
        "schema": "MARTS",
        "name": "DIM_CUSTOMER",
        "description": "Customer dimension with SCD Type 2",
        "transformation": "SCD_TYPE_2 + AGGREGATE"
      },
      {
        "id": "marts.fct_transaction",
        "type": "table",
        "database": "ANALYTICS_DW",
        "schema": "MARTS",
        "name": "FCT_TRANSACTION",
        "description": "Transaction fact table with dimensions"
      },
      {
        "id": "reporting.customer_360",
        "type": "view",
        "database": "ANALYTICS_DW",
        "schema": "REPORTING",
        "name": "CUSTOMER_360",
        "description": "Complete customer view for BI tools"
      },
      {
        "id": "reporting.revenue_dashboard",
        "type": "materialized_view",
        "database": "ANALYTICS_DW",
        "schema": "REPORTING",
        "name": "REVENUE_DASHBOARD",
        "description": "Aggregated revenue metrics for executive dashboard",
        "refresh_schedule": "DAILY at 06:00 UTC"
      },
      {
        "id": "external.crm_export",
        "type": "external_table",
        "location": "s3://company-exports/crm/",
        "description": "CRM data export to S3"
      },
      {
        "id": "external.bi_semantic_layer",
        "type": "semantic_model",
        "platform": "Looker",
        "description": "Looker semantic model for self-service analytics"
      }
    ],
    "relationships": [
      {
        "source": "raw.customers",
        "target": "staging.customers_cleaned",
        "type": "transform",
        "job": "dbt_staging_customers",
        "schedule": "hourly"
      },
      {
        "source": "raw.transactions",
        "target": "staging.transactions_enriched",
        "type": "transform",
        "job": "dbt_staging_transactions"
      },
      {
        "source": "staging.customers_cleaned",
        "target": "marts.dim_customer",
        "type": "transform",
        "job": "dbt_marts_dim_customer"
      },
      {
        "source": "staging.transactions_enriched",
        "target": "marts.fct_transaction",
        "type": "transform"
      },
      {
        "source": "raw.products",
        "target": "marts.fct_transaction",
        "type": "reference"
      },
      {
        "source": "marts.dim_customer",
        "target": "marts.fct_transaction",
        "type": "reference"
      },
      {
        "source": "marts.dim_customer",
        "target": "reporting.customer_360",
        "type": "transform"
      },
      {
        "source": "marts.fct_transaction",
        "target": "reporting.customer_360",
        "type": "transform"
      },
      {
        "source": "marts.fct_transaction",
        "target": "reporting.revenue_dashboard",
        "type": "aggregate"
      },
      {
        "source": "marts.dim_customer",
        "target": "reporting.revenue_dashboard",
        "type": "reference"
      },
      {
        "source": "reporting.customer_360",
        "target": "external.crm_export",
        "type": "export",
        "job": "airflow_crm_sync"
      },
      {
        "source": "reporting.revenue_dashboard",
        "target": "external.bi_semantic_layer",
        "type": "publish",
        "job": "looker_sync"
      }
    ],
    "jobs": [
      {
        "id": "dbt_staging_customers",
        "type": "dbt",
        "schedule": "0 * * * *",
        "description": "Hourly customer staging refresh"
      },
      {
        "id": "dbt_staging_transactions",
        "type": "dbt",
        "schedule": "0 * * * *"
      },
      {
        "id": "dbt_marts_dim_customer",
        "type": "dbt",
        "schedule": "0 2 * * *"
      },
      {
        "id": "airflow_crm_sync",
        "type": "airflow",
        "schedule": "0 6 * * *"
      },
      {
        "id": "looker_sync",
        "type": "api",
        "schedule": "0 7 * * *"
      }
    ]
  },
  "notes": "Sample Snowflake data warehouse lineage with multi-layer architecture (raw, staging, marts, reporting) and external system integrations."
}