Datenwarehouse (EN)
TechnologyCentral database for structured corporate data
Architecture
flowchart TD A[Data sources] --> B[ETL process] B --> C[Staging area] C --> D[Data warehouse] D --> E[OLAP system] D --> F[Data marts] E --> G[BI tools/Reporting] F --> G G --> H[End users]
Characteristics
- Subject-oriented
- Time-oriented (historical data)
- Integrated (data from various sources)
- Non-volatile (data is not deleted)
- Optimized for queries and analyses