data mart

See also: datamart

English

Alternative forms

• datamart

Etymology

Following the metaphor of a data warehouse.

Noun

data mart (plural data marts)

1. The access layer of a data warehouse environment, used to distribute a subset of the data to users.
   • 2002 [1991], W. H. Inmon, Building the Data Warehouse, 3rd edition, John Wiley & Sons, →ISBN, page 142:

     One of the issues of data warehouses and data marts is how data gets from the data warehouse to the data mart. Data in the data warehouse is very granular. Data in the data mart is very compact and summarized.

Related terms

• spreadmart