The data in Data warehouses and marts differ. Data is organized by subject rather than function
DBAs and database architects combine their knowledge of available tools with the business requirements in order to suggest the best possible application of technology to meet organizational goals.
Data governance requires control mechanisms and procedures for, but not limited to, escalating issues to higher level of authority.
Reference and Master data definition: Managing shared data to meet organizational goals, reduce risks associated with data redundancy, ensure higher quality, and reduce the costs of data integration.