International Journal of Computer Applications
Generally, software projects' outcomes will give the user various aspects of quality parameters. In such cases, empirical studies with prototyping exercises are well suited to analyze/understand the system. ETL (Extraction-Transformation-Loading) is the software responsible for extracting data, cleaning, transforming and loading the data into a data warehouse. ETL is a large software system. The performance of the decision support system depends on the data warehouse that it uses. ETL tools play a major role in building the data warehouse; these tools need to have good performance in order to improve the performance of the whole system.