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The design of data warehouses is the most important step in their life cycle and is due to its permanent impact on its condition and operation. Strategic decision-making in a timely manner is an objective and a need for decision makers, especially in a production environment with a high frequency of updating. Designers of data warehouses always try to minimize the execution time of the analysis requests and optimize the performance of the warehouse in order to present the reports in the bestdoi:10.5120/ijca2018917148 fatcat:tfa4hanrz5ar3coi5v6mz3ewwm