Business Intelligence

Data warehouse architecture, analytics platforms, and executive dashboards.

Scope

Data Warehouse

• Dimensional modeling
• ETL/ELT pipelines
• Data quality management
• Master data management
• Historical data retention

Analytics Platforms

• Self-service analytics
• Ad-hoc querying
• Data exploration
• Embedded analytics

Dashboards

• Executive KPIs
• Operational dashboards
• Departmental views
• Real-time monitoring

Data Products

• Curated datasets
• Data APIs
• ML feature stores
• Data marketplace

Research Topics

• Data warehouse architecture (Kimball vs. Inmon)
• Cloud data platforms (Snowflake, Databricks, BigQuery)
• BI tool selection (Tableau, Power BI, Looker)
• Real-time analytics
• Data mesh principles
• Data governance frameworks
• ML/AI integration
• Data democratization

Architecture Considerations

Modern Data Stack

┌─────────────────────────────────────────────────────┐
│                  Data Sources                        │
│  PSS │ DCS │ Finance │ Web/App │ External │ IoT    │
└───────────────────────┬─────────────────────────────┘
                        │
              ┌─────────▼─────────┐
              │   Data Ingestion  │
              │  (Fivetran, Airbyte)
              └─────────┬─────────┘
                        │
              ┌─────────▼─────────┐
              │   Data Lake       │
              │   (S3, ADLS)      │
              └─────────┬─────────┘
                        │
              ┌─────────▼─────────┐
              │   Transformation  │
              │   (dbt, Spark)    │
              └─────────┬─────────┘
                        │
              ┌─────────▼─────────┐
              │  Data Warehouse   │
              │ (Snowflake, BQ)   │
              └─────────┬─────────┘
                        │
         ┌──────────────┼──────────────┐
         │              │              │
    ┌────▼────┐   ┌─────▼─────┐  ┌────▼────┐
    │   BI    │   │  ML/AI    │  │   APIs  │
    │ (Tableau)│   │ Platform  │  │(Serving)│
    └─────────┘   └───────────┘  └─────────┘

Dimensional Model

Fact Tables

fact_booking
├── booking_date_key (FK)
├── flight_key (FK)
├── passenger_key (FK)
├── channel_key (FK)
├── route_key (FK)
├── booking_count
├── revenue_amount
├── ancillary_amount
└── segment_count

fact_flight_performance
├── flight_date_key (FK)
├── flight_key (FK)
├── scheduled_departure
├── actual_departure
├── delay_minutes
├── pax_count
└── load_factor

Dimension Tables

dim_date
├── date_key, full_date
├── day_of_week, month, quarter, year
├── is_weekend, is_holiday
└── fiscal_period

dim_route
├── route_key
├── origin_code, origin_city, origin_country
├── destination_code, destination_city, destination_country
├── distance_km
└── region_pair

dim_passenger
├── passenger_key
├── ffp_tier
├── customer_value_segment
└── demographics (anonymized)

Integration Points

Dashboard Framework

Executive Dashboard

Operational Dashboard

Platform Selection

Data Warehouse

BI Tools

Data Governance

Components

• Data catalog
• Data lineage
• Quality monitoring
• Access controls
• Privacy compliance

Tools