Meta data is all about data warehousing.
Most implementations of meta data target the data within a data warehouse. There is no reason that the implementation of meta data should be limited to a data warehouse. Depending on the scope of implementation, meta data can be maintained on organizational processes, business indicators and metrics. Enterprise-level meta data is more useful than a solution that is data warehouse centric.
Meta data should target data origination sources throughout the enterprise, such as transaction systems.