Real-time Data Warehousing
Traditionally, DWs work mainly on historical data to support strategic and tactical decision making.
For many business, making fast and consistent decisions across the enterprise requires real-time data warehousing. Decision support has become operational.
Real-time data warehouse (RDW), also known as active data warehouse (ADW), is the process of loading and providing data via the data warehouse as they become available.
At a basic level, ADW simply report what happened. At the next level, some analysis occurs. As the system evolves, it provides prediction capabilities, which lead to the next level of operationalization.
At its highest evolution, ADW is capable of making events happen (e.g. activities such as creating sales and marketing compaigns or idnetifying and exploiting opportunities).