For the past two days we were working towards creating an iPhone app for the hearing impaired users. The application will enable an iPhone to be used as a hearing aid. Figures show that people with partial or complete loss of hearing includes a large number of elderly population. We thus choose elderly as the target user group for this application.
We try to suggest a design solution at three different levels:
1. At the level of information architecture: We decided to keep the application essentially a simple one. We had to drop some of the advanced features for the pilot release. The application currently enables this user group to hear the surrounding sounds with an amplification. However users have also been provided with an ability to record different sounds which they consider as noise and then use this application to cancel these sounds as noise filters. Advanced features like managing noise profiles according to different usage scenarios are not taken into consideration at this stage.
2. At the level of usability: A short user study revealed that elderly users often find themselves lost while trying to understand visual clues like icons or graphic based buttons. Rather they prefer a step wise approach by carefully reading the text based instructions. Now the challenge was to come with action buttons with explicit text messages while staying crisp and precise. We also considered resizing the default “active or hit” areas for these buttons to be of a little larger size.
3. At the level of visual design: An apparent strategy of creating a visual contrast is followed. Besides we use iPhone library for creating visual design for this UI.
We plan to improve this application and are looking forward for any user feedback. The application is currently priced at $2. By-n- large as a short project, it was quite a fun for everyone in the team 🙂
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