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Mergers and acquisitions have served as a primary strategy for global banking consolidation over the past three decades, including in Indonesia, which is currently undergoing one of its most massive consolidation waves—one notable example being the emergence of Bank Syariah Indonesia. This article aims to provide a narrative review of the literature on the operational impacts of mergers on bank performance, with a particular focus on implications for the Indonesian context. Based on a systematic search of the Scopus database, 52 peer-reviewed articles published between 2000 and 2025 were analyzed using a narrative thematic synthesis approach. Five main themes were identified: cost efficiency, service quality, risk management, human resource and cultural integration, and information systems and technology integration. The key findings indicate that although 73.1% of studies report post-merger improvements in cost efficiency, these benefits are highly contingent upon the quality of post-merger integration especially in the areas of human resources, organizational culture, and information technology with IT integration failure rates reaching as high as 75%. Domestic mergers consistently achieve efficiency gains more rapidly than cross-border mergers, whereas risk implications depend heavily on the type of merger and the quality of integration. Policy implications include the need for the Financial Services Authority (Otoritas Jasa Keuangan) to monitor post-merger integration quality, provide integration guidelines for smaller banks, take into account the specific characteristics of Islamic banks, and ensure a streamlined, non-burdensome licensing process. Further research particularly empirical studies on banking mergers in Indonesia—is urgently needed to test the generalizability of global findings to the local context.

This research explores the management of management information systems at Jomelo Cosmetic Shop on Bukit Kaminting Induk Street, Palangka Raya City using qualitative methods and a holistic approach. Data were collected through observation, interviews, and documentation. The study discovered that the deployment of a management information system has a significant impact on the efficacy of the organization's data source system, with 100% of respondents stating that SIM helps improve operational efficiency and decision-making. In the study, one hundred percent of respondents stated that SIM improves operational efficiency and decision-making processes, which shows how important the implementation of a management information system  is to improve the performance of enterprise data source systems. The study recommends several measures to improve the effectiveness and efficiency of  management information system, such as increasing staff training on the use of SIM (80% of respondents agreed), monitoring and evaluating SIM performance regularly (75% of respondents agreed) and optimizing the use of information technology to support SIM (65% of respondents agreed). This study also recommends several steps to improve product information for customers, such as providing more complete product information on the store website (90% of respondents agreed), utilizing social media to promote products (85% of respondents agreed), and training store staff to provide proper product information (70% of respondents agreed The findings of this study indicate that Jomelo Cosmetic Shop can improve its competitiveness and quality of service to customers by implementing best practices in information systems management. This is expected to improve operational efficiency and better delivery of product information to customers.

The purpose of this study is to determine the effect of information quality, information systems and the quality of service interaction on employee satisfaction.  This research took the object of 50 employees of the Investment and One-Stop Integrated Services Office of Pati Regency. The researcher's sampling technique uses saturated sampling. Data analysis method using multiple regression The results of the study found that there was a positive and significant influence of information quality on employee satisfaction, there was a positive and significant influence of information systems on employee satisfaction and there was a positive and significant influence on the quality of service interaction on employee satisfaction.