<![CDATA[Inventory management that is not properly controlled may result in inaccurate stock records, delays in inventory updates, and imbalances in stock availability, including shortages and excessive inventory levels. To address these issues, this research develops a web-based Inventory Information System by applying the Periodic Review method to optimize inventory management at PT Nufarm Indonesia, Bojonegara Serang Unit. The research employs a quantitative approach and follows the Waterfall software development model, encompassing requirement analysis, system design, implementation, and system testing. The application is built using PHP as the programming language and MySQL as the database management system. It provides functionalities for managing inventory data, supplier information, stock receipt and issuance transactions, as well as automated replenishment calculations based on the Periodic Review method. The proposed system is capable of monitoring inventory in real time and producing reorder recommendations by considering review intervals, demand rates, safety stock, and available inventory levels. System validation through White Box Testing produced a cyclomatic complexity value of 2, indicating that the program logic is efficient and performs as intended. Functional verification using Black Box Testing demonstrated that all system features satisfy the specified requirements. In addition, the User Acceptance Test (UAT) achieved an average score of 4.57, indicating a very good level of user satisfaction. The comparison between pre-test and post-test results also showed an increase in the average score from 65 to 87.67. These findings suggest that the developed system enhances inventory management efficiency while providing reliable support for procurement decision-making.]]>
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