In order to get maximum money saving benefit from data warehouse, necessary things are that, don't get stuck in proprietary solutions, reduce complexity by following standards, identify the availability requirements those will be necessary and data warehouse must meet in few years[3]. Real strength of data warehouse can be exploited if quality of data and quality of service but are available in it otherwise it will not be helpful in decision making and instead of giving cost benefit it will result in loss. To achieve data quality meta data about the DWH plays important role and that can be improved by considering conceptual, physical and logical perspective of enterprise.