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The Methods & Architecture Behind Data Warehousing
The method data warehousing vendors use to provide their service is a key issue. Vendors who let you run your own server's license or those who host software tools on their servers are common options. There are multiple options related to the architecture of the data warehousing system. The most popular is the hub-and-spoke architecture, which is a centralized data warehouse with dependent data marts. It is a sort of corporate information factory. One other choice in data warehousing architecture is the data-mart bus architecture linking dimensional data marts, or a centralized data warehouse with no dependent marts and last but not least, a federated architecture. Some organizations develop their own data marts, which are independent from one another. However, they have inconsistent data definitions and different dimensions, which make it difficult to analyze data across marts. Data mart bus architecture implies building a first mart that uses dimensions and measures that will be used with the other marts t
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