In any successful organisation, decisions need to be made daily. The bases for these decisions come from a wide variety of sources. There is always a risk that such bases become too complex and too comprehensive to be analysed.
A decision support system gathers all the underlying information available and makes it possible to view the whole picture. A decision support system makes the right information available to the right person at the right time and may contain everything from simple report tools and spreadsheets to advanced multi-dimensional decision matrices.