1) Write down the data integration and ETL. How are they related? What is the data warehouse and state its benefits? Why is Web accessibility significant with a data warehouse? A data mart can replace a data warehouse or complement it. Compare and discuss these options.
2) Describe the major drivers and benefits of data warehousing to end users. state the differences and/or similarities between the roles of a database administrator and a data warehouse administrator.Describe how data integration can lead to higher levels of data quality.