 A data hub differs from a data warehouse in that it is generally unintegrated and often at different grains.It differs from an operational data store because a data hub does not need to be limited to operational data.A data hub differs from a data lake by homogenizing data and possibly serving data in multiple desired formats, rather than simply storing it in one place, and by adding other value to the data such as de-duplication, quality, security, and a standardized set of query services.