Data Warehousing & Data Mining Analogy with a Warehouse • What is a warehouse? • How it works? • What are the concepts behind a typical warehouse? • What service is provided by the warehouse??? DW Architecture Concepts of DW • • • • • • • • Multiple sources of Information Stored at a single site (central repository) Stored in Unified Schema Stores current & historical data Management Decision Support Subject Oriented (Prod/Engg./Sales/Cust.) Integrated