Multi-Layered Interfaces to Improve Older Adults’ Initial Learnability of Mobile Applications

Guidelines for Creating Senior-Friendly Product Instructions

Although older adults feel generally positive about technologies, many face difficulties when using them and need support during the process. One common form of support is the product instructions that come with devices. Unfortunately, when using them, older adults often feel confused, overwhelmed, or frustrated. In this work, we sought to address the issues that affect older adults’ ability to successfully complete tasks using product instructions. By observing how older adults used the product instructions of various devices and how they made modifications to simplify the use of the instructions, we identified 11 guidelines for creating senior-friendly product instructions. We validated the usability and effectiveness of the guidelines by evaluating how older adults used instruction manuals that were modified to adhere to these guidelines against the originals and those that were modified by interaction design researchers. Results show that, overall, participants had the highest task success rate and lowest task completion time when using guideline-modified user instructions. Participants also perceived these instructions to be the most helpful, the easiest to follow, the most complete, and the most concise among the three. We also compared the guidelines derived from this research to existing documentation guidelines and discussed potential challenges of applying them.

Iterative Design and Field Trial of an Aphasia-Friendly Email Tool

In this article, we describe the iterative design and field trial of Amail, an email client specifically designed for people with aphasia who have problems expressing themselves verbally. We conducted a 3-month study with eight persons with aphasia to better understand how people with aphasia could integrate Amail in their daily life. Subjective data (questionnaires, interviews, and diaries) and objective data (usage logs) were collected to gain understanding of the usage patterns. All persons with aphasia in our study were able to use Amail independently, and four participants continued using Amail after the study period. The usage patterns, especially the frequency and length of the composed email messages, indicated that, over time, persons with aphasia were able to improve their email communication. Email partners also had the impression that their email partners with aphasia were improving gradually. Last but not least, the use of Amail positively influenced the number and quality of social contacts for the persons with aphasia. We also report some of the challenges encountered while conducting the field trial.

How Older Adults Learn to Use Mobile Devices

Mobile computing devices, such as smart phones, offer benefits that may be especially valuable to older adults (age 65+). Yet, older adults have been shown to have difficulty learning to use these devices. In the research presented in this article, we sought to better understand how older adults learn to use mobile devices, their preferences and barriers, in order to find new ways to support them in their learning process. We conducted two complementary studies: a survey study with 131 respondents from three age groups (20--49, 50--64, 65+) and an in-depth field study with 6 older adults aged 50+. The results showed, among other things, that the preference for trial-and-error decreases with age, and while over half of older respondents and participants preferred using the instruction manual, many reported difficulties using it. We discuss implications for design and illustrate these implications with an example help system, Help Kiosk, designed to support older adults’ learning to use mobile devices.