With the use of digital mobile devices, typical smartphone apps need to be easily accessible to users of
various ages. In particular, for the convenience of the silver generation with visual difficulties, an interface
design that increases the accessibility of the app is urgently required.
The purpose of this study is to verify the applicability of the 50+ Seoul App Interface Design of Silver
generation, which is based on the app interface design guideline that was proposed as a follow - up study
of the researcher 's previous studies.
First, based on the interface design guidelines proposed in the previous research, we apply the analysis
results of the Seoul city senior portal 50+ Seoul app to improve the interface design and evaluate usability.
It is conducted by the qualitative survey method to find the opinions, ideas, and problems of the
participant who is the evaluation method in the previous research for the silver generation.