Freestanding data marts are created independent from a data warehouse. The information for the data mart usually comes from just one legacy system. It is quicker and cheaper to build a separate data mart instead of building an enterprise-wide data warehouse with data marts derived from it. Data Mining Data mining is the process of finding hidden patterns and relationships in the data. Analyzing data involves the recognition of significant patterns.
Human analysts can see patterns in small data sets.
Specialized data mining tools are able to find patterns in large amounts of data. These tools are also able to analyze significant relationships that exist only when several dimensions are viewed at the same time.