Implementation of Screen-Smart Device Interaction (SSI) for Posting Content in Public Display Using Chat-based File Input

Public display is a media that is increasingly being used every day. No longer just a medium for advertising. But it has also begun to be used in non-commercial institutions such as education and government. One potential use of public display is as a medium of public information to increase awareness of disasters. One of the problems faced by public displays is the relatively small level of community adoption. This can be seen when compared to mobile phones, there is no large usage level. The use of public displays still tends to be incidental, not yet a daily necessity such as a mobile phone. In this study, a chat-based interaction is designed to let the user interact with the public display using their mobile phone. The interaction is designed to allow users to post content on public display using their mobile phones. The usability measurement results show the possibility of the interest of the community about the interaction model. Hopefully, in the future, this could push the use of a public display as an information medium to improve disaster awareness.