Computer technology enabling data from multiple operational processing systems to be brought together into a single source, which can then be accessed and interrogated. The data can be both current and historical. Warehousing differs from previous management information systems in that designers do not need to think about what questions might be asked of the system.
A computer application used to solve problems within a specific area of knowledge by storing, organizing, and retrieving extensive amounts of information and making decisions similar to those of a human expert in the field.
