Date Added: Apr 2012
A 'Data warehouse' is a repository of an organization's electronically stored data. Emergence of huge data warehouses has also put a big challenge in these data entry processing systems. Data warehouses contain a wide variety of data that present a coherent picture of business conditions at a single point in time. Development of data warehouse includes development of systems to extract data from operational systems plus installation of a warehouse database system that provides managers flexible access to data. Data entry is processing of data using application programs that are created with the objective of the output.