International Journal of Advanced Research in Computer Science and Software Engineering (IJARCSSE)
Data Warehouse Testing (DWT) forms a very crucial stage in the DW development as all the important decisions are taken based on the information residing in Data Warehouse (DW). As business information is available in diverse form but mostly in repositories of unstructured data. While developing the DW, immense amount of data is transformed, integrated, cleansed and structured into DW as a single set. These disparate changes could result into corrupt data or missing values. Also, testing is responsible for validation of validation of data.