18. Data Warehouses II
In brief summary of the previous chapter, the discussion has been the evolution of the data warehouse from its early beginnings in reporting through its maturing stages of decision support and into the realm of the true data warehouse. In that chapter Keen and Scott-Morton and their exploration of the decision process within companies was discussed. The components of a decision were discussed. The responsibility of informational sharing was discussed as being put squarely on Information Technology’s shoulders. There was a recap of how the report writers and query engines drove the effort to design report databases. Also noted in the discussions were the differences between warehouses and reporting databases.