This article focusses on the latest breakthrough in computer and infor
mation science: intelligent information systems (IIS). IIS is a powerf
ul product combining Data WareHouse technology (complete solutions for
data input-output, information). An overview of IIS architecture is p
resented along with IIS program tools. Its most interesting applicatio
ns (in natural sciences - ecology, medicine, banking and financial ana
lysis, etc.) are also discussed.