{
  "pipeline": {
    "name": "customer_analytics_pipeline",
    "description": "End-to-end customer analytics data pipeline",
    "version": "2.1.0",
    "owner": "data-engineering@company.com",
    "created": "2025-01-15",
    "schedule": "daily at 02:00 UTC"
  },
  "sources": [
    {
      "id": "src_salesforce",
      "name": "Salesforce CRM",
      "type": "api",
      "connection": {
        "endpoint": "https://company.salesforce.com/api/v52.0",
        "auth": "oauth2"
      },
      "objects": ["Account", "Contact", "Opportunity", "Lead"],
      "incremental_field": "LastModifiedDate"
    },
    {
      "id": "src_stripe",
      "name": "Stripe Payments",
      "type": "api",
      "connection": {
        "endpoint": "https://api.stripe.com/v1",
        "auth": "api_key"
      },
      "objects": ["charges", "customers", "subscriptions", "invoices"]
    },
    {
      "id": "src_postgres_app",
      "name": "Application Database",
      "type": "database",
      "connection": {
        "host": "app-db.internal",
        "port": 5432,
        "database": "production"
      },
      "tables": ["users", "user_events", "feature_flags", "subscriptions"]
    },
    {
      "id": "src_segment",
      "name": "Segment Events",
      "type": "stream",
      "connection": {
        "type": "kafka",
        "topic": "segment-events",
        "bootstrap_servers": "kafka.internal:9092"
      },
      "events": ["page", "track", "identify"]
    },
    {
      "id": "src_google_analytics",
      "name": "Google Analytics 4",
      "type": "api",
      "connection": {
        "property_id": "GA4-123456789"
      },
      "metrics": ["sessions", "users", "conversions", "revenue"]
    }
  ],
  "stages": [
    {
      "id": "extract",
      "name": "Data Extraction",
      "steps": [
        {
          "id": "ext_salesforce",
          "source": "src_salesforce",
          "output": "landing/salesforce/",
          "format": "parquet",
          "partitions": ["date"],
          "mode": "incremental"
        },
        {
          "id": "ext_stripe",
          "source": "src_stripe",
          "output": "landing/stripe/",
          "format": "parquet",
          "mode": "incremental"
        },
        {
          "id": "ext_postgres",
          "source": "src_postgres_app",
          "output": "landing/app_db/",
          "format": "parquet",
          "mode": "cdc"
        },
        {
          "id": "ext_segment",
          "source": "src_segment",
          "output": "landing/segment/",
          "format": "parquet",
          "mode": "streaming"
        },
        {
          "id": "ext_ga4",
          "source": "src_google_analytics",
          "output": "landing/ga4/",
          "format": "parquet",
          "mode": "batch"
        }
      ]
    },
    {
      "id": "transform",
      "name": "Data Transformation",
      "steps": [
        {
          "id": "tfm_customer_identity",
          "name": "Customer Identity Resolution",
          "inputs": ["ext_salesforce", "ext_stripe", "ext_postgres"],
          "output": "curated/customer_identity/",
          "logic": "Match and merge customer identities across systems using email, phone, and probabilistic matching",
          "technology": "Spark"
        },
        {
          "id": "tfm_event_enrichment",
          "name": "Event Enrichment",
          "inputs": ["ext_segment", "ext_ga4", "tfm_customer_identity"],
          "output": "curated/events_enriched/",
          "logic": "Join events with customer identity and add session context"
        },
        {
          "id": "tfm_revenue_calc",
          "name": "Revenue Calculation",
          "inputs": ["ext_stripe", "ext_salesforce", "tfm_customer_identity"],
          "output": "curated/revenue/",
          "logic": "Calculate MRR, ARR, churn, and expansion revenue metrics"
        },
        {
          "id": "tfm_product_usage",
          "name": "Product Usage Metrics",
          "inputs": ["ext_postgres", "tfm_event_enrichment"],
          "output": "curated/product_usage/",
          "logic": "Aggregate product usage by customer and feature"
        }
      ]
    },
    {
      "id": "model",
      "name": "Data Modeling",
      "steps": [
        {
          "id": "mdl_dim_customer",
          "name": "Customer Dimension",
          "inputs": ["tfm_customer_identity", "tfm_revenue_calc"],
          "output": "warehouse.dim_customer",
          "type": "scd_type_2"
        },
        {
          "id": "mdl_dim_product",
          "name": "Product Dimension",
          "inputs": ["ext_postgres"],
          "output": "warehouse.dim_product"
        },
        {
          "id": "mdl_fct_events",
          "name": "Events Fact",
          "inputs": ["tfm_event_enrichment", "mdl_dim_customer", "mdl_dim_product"],
          "output": "warehouse.fct_events",
          "grain": "event"
        },
        {
          "id": "mdl_fct_revenue",
          "name": "Revenue Fact",
          "inputs": ["tfm_revenue_calc", "mdl_dim_customer"],
          "output": "warehouse.fct_revenue",
          "grain": "transaction"
        },
        {
          "id": "mdl_fct_usage",
          "name": "Usage Fact",
          "inputs": ["tfm_product_usage", "mdl_dim_customer", "mdl_dim_product"],
          "output": "warehouse.fct_usage",
          "grain": "daily_customer_feature"
        }
      ]
    },
    {
      "id": "aggregate",
      "name": "Aggregations & Marts",
      "steps": [
        {
          "id": "agg_customer_360",
          "name": "Customer 360 View",
          "inputs": ["mdl_dim_customer", "mdl_fct_events", "mdl_fct_revenue", "mdl_fct_usage"],
          "output": "marts.customer_360",
          "refresh": "hourly"
        },
        {
          "id": "agg_revenue_metrics",
          "name": "Revenue Metrics",
          "inputs": ["mdl_fct_revenue", "mdl_dim_customer"],
          "output": "marts.revenue_metrics",
          "refresh": "daily"
        },
        {
          "id": "agg_product_analytics",
          "name": "Product Analytics",
          "inputs": ["mdl_fct_usage", "mdl_fct_events", "mdl_dim_product"],
          "output": "marts.product_analytics",
          "refresh": "daily"
        },
        {
          "id": "agg_health_score",
          "name": "Customer Health Score",
          "inputs": ["agg_customer_360", "agg_revenue_metrics", "agg_product_analytics"],
          "output": "marts.customer_health_score",
          "logic": "ML-based health score prediction"
        }
      ]
    },
    {
      "id": "publish",
      "name": "Data Publishing",
      "steps": [
        {
          "id": "pub_looker",
          "name": "Looker Semantic Layer",
          "inputs": ["agg_customer_360", "agg_revenue_metrics", "agg_product_analytics"],
          "output": "looker://models/customer_analytics",
          "type": "semantic_model"
        },
        {
          "id": "pub_salesforce_sync",
          "name": "Salesforce Sync",
          "inputs": ["agg_customer_360", "agg_health_score"],
          "output": "salesforce://Account.HealthScore__c",
          "type": "reverse_etl"
        },
        {
          "id": "pub_ml_features",
          "name": "ML Feature Store",
          "inputs": ["agg_customer_360", "agg_product_analytics"],
          "output": "feast://customer_features",
          "type": "feature_store"
        }
      ]
    }
  ],
  "data_quality": {
    "rules": [
      {"table": "mdl_dim_customer", "check": "unique", "column": "customer_id"},
      {"table": "mdl_fct_revenue", "check": "not_null", "columns": ["customer_id", "amount", "transaction_date"]},
      {"table": "agg_revenue_metrics", "check": "freshness", "max_delay_hours": 2}
    ]
  },
  "notes": "Comprehensive ETL pipeline sample showing data flow from multiple sources through transformation, modeling, and publishing stages."
}