# ATNBD - exemplary questions in a nutshell ## 1. Basic DWH definitions. * data warehouse - a data management system that is designed to enable and support business intelligence activities within an organization * dimension - a single piece of information about a given event * fact - a single event described by dimensions * dimension table - a table containing dimensions * fact table - a table containing facts * measure - a numerical attribute in a fact table that can be aggregated * OLAP cube