<![CDATA[Background and purpose: Dengue infection remains a major public health issue in Bali, Indonesia, where high mobility and tourism increase the risk of transmission. Existing manual surveillance systems are often slow, fragmented, and resource-intensive. A digital, integrated approach is needed to improve early detection, reporting, and community participation in dengue control. This study aimed to design, develop, and assess the usability of an integrated digital surveillance system for dengue control in Bali, Indonesia. Methods: The application, named SILIRA, was developed using the Rapid Application Development (RAD) approach and validated by experts in health information systems, vector control, and health promotion media. Usability was assessed through the Post-Study System Usability Questionnaire (PSSUQ), administered to 120 respondents (100 community users and 20 health workers). The evaluation focused on system usefulness, information quality, interface quality, and overall satisfaction Results: SILIRA integrates hospital-based and community-based reporting, epidemiological investigation, entomological surveillance, and digital education. Usability testing showed favourable mean scores among community vs. health workers were 3.83 vs. 4.14 (system usefulness), 3.74 vs. 4.01 (information quality), and 4.18 vs. 4.25 (interface quality), with overall satisfaction of 4.08 vs. 4.30. System usage data showed that the education menu was the most frequently accessed feature (88%), followed by the dengue control (82%) and dengue information (75%) menus. A preliminary feasibility assessment suggested that SILIRA was compatible with existing reporting procedures and could be implemented within the existing health system. Conclusion: The SILIRA prototype demonstrates strong usability and feasibility as an integrated digital surveillance system for dengue control. By combining rapid case reporting, larva density monitoring, and digital education. SILIRA has the potential to support dengue surveillance and control by facilitating integrated reporting, spatial monitoring, and community engagement.]]>
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