Data warehouse architecture, complex structure, multiple layers, star schema, snowflake schema, fact tables, dimension tables, ETL processes, data mart, metadata repository, business intelligence tools, data visualization, reporting, analytics, cloud-based, on-premise, scalable, secure, high-performance, real-time data processing, distributed computing, columnar storage, data governance, data quality, data integration, master data management, hub-and-spoke architecture, bus architecture, federated architecture, metadata-driven architecture, canonical architecture, hybrid architecture, Azure Synapse Analytics, Amazon Redshift, Google BigQuery, Oracle Exadata, IBM Netezza, Teradata, SAP HANA, 3D visualization, interactive dashboard, real-time monitoring, predictive analytics, machine learning integration.