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The Distributed Database Management Systems (DDBMS) are measured by their Quality of Service (QoS) improvements on the real world applications. To analyze the behavior of the distributed database system and to measure its quality of service performance, an integrated tool for a DDBMS is developed and presented. This tool supplies the database administrators with a friendly use, easy to navigate, comprehensive, and expandable software that applies the techniques of database fragmentation, clustering network sites, and fragment allocation and replication in a DDBMS. The tool executes the database transactions efficiently through reliable forms that allow the database administrators to control over their operations and follow up the system improvements and quality of service enhancements. The evaluation results indicate that the proposed tool significantly improves the quality of service performance in the DDBMS even with manageable extra information and network sites.