What is Enterprise Warehouse?
An enterprise warehouse collects all the information’s about subjects spanning the entire organization. It provides corporate-wide data integration, usually from one (or) more operational systems (or) external information providers.
It contains detailed data as well as summarized data and can range in size from a few giga bytes to hundreds of giga bytes, tera bytes (or) beyond.
An enterprise data warehouse may be implemented on traditional mainframes, UNIX super servers (or) parallel architecture platforms. It requires business modeling and may take years to design and build.