This article discusses why business intelligence is often too closely associated with data warehousing and should be replaced by a concept such as decision intelligence, which could be considered a modern version of earlier decision support systems.
M. Golfarelli, S. Rizzi, and I. Cella. DOLAP '04: Proceedings of the 7th ACM international workshop on Data warehousing and OLAP, page 1--6. New York, NY, USA, ACM Press, (2004)