During the COVID-19 pandemic, safe, efficient, and effective educational methods are needed for patients with diabetes. Existing online education is mostly one-way, limiting monitoring and interaction. Therefore, a two-way online educational system is required to facilitate interaction among patients, families, and healthcare providers. This study aims to develop a two-way application-based educational platform. This research used a development design, including prototype design, validation, and acceptability testing. The result is an online educational application prototype named Telemondia, which has been validated by diabetes education experts and information technology experts. Expert validation showed average scores of 4.5 for content, 4.0 for navigation, 4.5 for interface, 4.5 for ease of use, and 5.0 for comfort, with an overall average of 4.5, indicating that the application is feasible. Acceptability testing involving 24 patients with diabetes and two healthcare providers showed average scores of 4.7 for appearance, 4.8 for ease of use, 4.8 for text clarity, and 4.77 for language, with an overall average of 4.77. These results indicate that Telemondia is well accepted. Future development will include audio and video recording features.
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