Reflects business entities and processes that the organization works with daily. The level of detail in the subject area is what is important: if detailed data is there, it is a data warehouse. If summary or only limited data is there, it is a data mart.
Evolution of the Data Warehouse
Teradata's data warehouse solution
A data warehouse isn’t a collection of tables or measured in terabytes. It’s a design pattern, a data architecture with many characteristics:
How does data get into the data warehouse?
The Cloud Data Warehouse and Teradata Vantage
Both Teradata and the industry at large evolved to incorporate the benefits of cloud deployment and scalability. Teradata Vantage, the company’s flagship offering, builds on the strong foundation of Teradata Database and incorporates advanced analytic capabilities acquired with Aster Data in 2011.
Vantage is available for Amazon Web Services (AWS), Microsoft Azure, Google Cloud, Teradata infrastructure (Teradata Cloud or Customer Cloud), and commodity hardware running VMware virtualization software.