TECHNOLOGIES, USED IN DATABASE DESIGN IN INFORMATION SYSTEMS

Creation of databases is a laborious and lengthy process. Along with data warehouses exist and are often used by companies data marts (data marts), also called data marts. Such systems are created for separate divisions or companies to provide certain types of activities. Amounts of data and compute resources in the data Mart are significantly less in comparison with stores. Data marts can be built independently or based on data warehousing. Data warehouses have a two-tier or three-tier architecture. In a two-level storage on the upper level is supported by the joint information. On the lower level - different sources of databases. In a three-tier architecture provides support for data marts for individual departments of the company over its single copy.