RickJWagner writes: "ETL is an IT discipline that deals with efficient handling of multiple rows of data. Reading, writing, augmenting, transforming, validating, reporting-- all this is covered by ETL. See how it differs from an ESB (or Data Integration Framework) and why ease-of-use is a strong point."
...though his invention worked superbly -- his theory was a crock of sewage from
beginning to end. -- Vernor Vinge, "The Peace War"