Mobile Application Development of Managing Elderly Household Accounts Using Speech Recognition Using spoken language is the easiest and most natural way of communication for human beings. The communication between humans and machines using sounds or language is a huge move forward. This article demonstrates the development of a mobile application for managing household accounts with the integration of a speaking voice and touchscreen function on smartphones; this could also be used as a tool to manage household accounts for elderly Thai people. The content was evaluated by five experts to identify each feature of the developed mobile application. Afterwards, the developed mobile application was distributed to thirtythree elderly people. The findings showed that the elderly people were able to learn and use the mobile application effectively. The learning posttest results scored higher than the pretest results. The effectiveness evaluation results in terms of the accessibility barriers that can be faced by elderly people while using mobile applications showed that the average mean was 4.13 and the standard deviation was 0.36 and the acceptance of the mobile application based on accessibility barriers that could be detected by elderly people while being used has high consensus. This indicates that the developed mobile application is effective for elderly users at a high level.

Usability Testing of a Smartphone Telecare Application for Informal Caregivers Independent living of the elderly has its risks that can be decreased with the use of telecare systems. Smartphone telecare applications such as TeleStiki, are intended primarily for informal carers of independently living elders. The application is aimed at improving quality of life of both the elderly and their caregivers by reducing the caregiver burden and extending the time elders stay at home, while also increasing their safety. The aim of usability testing was to evaluate if users perceive the tested smartphone application as high in usability and user experience. The testing was also aimed at evaluating whether the use of application affects their attitude towards the use of telecare applications for informal care of their elderly relatives in general. In this study Task Completion, User Experience Questionnaire and System Usability Scale, as well as the ThinkAloud protocol has been performed. Results showed the application scores above average in usability and user experience. Findings gained in the qualitative study can be used as guidelines for future redesigns of the application and for improvement of usability in similar applications.