Recently, different services are being introduced for the silver generation, but most are limited to providing information for older people and are insufficient in terms of functionality, ease of use, and diversity.In this paper seeks to study the design strategies of smart app interface for the smart silver generation born in the 70's. The proposed method intends to provide an optimized user interface by setting the icon size and spacing, font size color sound, and the psychological state in a five-step process.An optimized interface status value extracted from each step is applied directly to the interface of smart app. By using the results of this study, we can expect increased accessibility and usability for silver generation to use smart contents.

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