- Data warehouses have become more common in corporations where enterprise-wide detail data may be used for online analytical processing (OLAP) to make strategic and tactical business decisions. Data warehouses often contain many years of detailed data to allow for historical trend analysis. - A data mart is a subset of enterprise data used by a particular department or function, containing specific data extracted from a larger data warehouse. Data marts can be physical/logical and dependent/independent. - Data mining involves exploring large amounts of business or market data to identify patterns and relationships, which are then validated and used for prediction by applying the patterns to new data subsets. The goal of data mining is prediction.