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Using Extraction, transformation, and loading ETL activities, an association might collect information from both inside and outside sources, change it, and afterward populate an information stockroom with the consequences of these cycles. As a model for business processes, the Business Process Modelling and Notation has been given. ETL procedures are expressed on a conceptual level. In this study, an alternative strategy is investigated. ETL is specified using relational algebra (RA), which has been enhanced with update procedures. A data warehousing architecture's Extraction, Transformation, and Loading (ETL) process is critical. ETL operations are often time-consuming and sophisticated. The design step is very crucial (though sometimes overlooked) in ETL development since it has an influence on the future phases, namely implementation. As well as execution When ETL quality is addressed throughout the design process, it is possible to take steps that will have a good and long-term impact.Process efficiency is improved at a cheap cost. Briand et alframework .'s (theoretical validation) was used. Internal metrics that we believe are linked to process efficiency are established in detail (framework for system artefacts). We also present empirical support for this relationship, as well as an interpretation of the data.the efficiency indicators that have a greater influence. ETL design quality has been addressed before, but this is the first time that measurements across ETL models have been used to anticipate the performance of these models.