the.com/data mart
a data warehouse that only had to worry about one department's feelings.
means a smaller, focused subset of a data warehouse built for one team or function, like sales or finance, instead of the whole company.
from emerged in the 1990s as warehouse projects kept collapsing under their own ambition, so architects carved off department-sized chunks that could actually ship.
top-down vs bottom-upkimball built marts first, inmon built warehouse first
typical sizeoften under 100gb, warehouse can be terabytes
star schema homemarts usually organized around one business process