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Fan M, Truong KN. Guidelines for Creating Senior-Friendly Product Instructions. ACM TRANSACTIONS ON ACCESSIBLE COMPUTING 2018. [DOI: 10.1145/3209882] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/14/2022]
Abstract
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.
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Affiliation(s)
- Mingming Fan
- Department of Computer Science, University of Toronto, Toronto, ON Canada
| | - Khai N. Truong
- Department of Computer Science, University of Toronto, Toronto, ON Canada
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Sengpiel M. Teach or Design? How Older Adults’ Use of Ticket Vending Machines Could Be More Effective. ACM TRANSACTIONS ON ACCESSIBLE COMPUTING 2016. [DOI: 10.1145/2935619] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/20/2022]
Abstract
The dominance of computer technology in work and leisure poses challenges for older people. Their lack of computer experience and computer literacy impedes their ability to explore and use new interactive systems. This is particularly challenging for the design of public access systems, such as ticket vending machines (TVM). This article describes a conflict relevant for many designers considering age-related differences in technology use: should the user be taught to use the existing design or should the design be changed to accommodate older users? An experiment was conducted to directly compare these alternative approaches with each other and with a simulation of an existing TVM. It compares three TVM designs regarding the usability criteria of effectiveness, efficiency and satisfaction, controlling for age, and cognitive and motivational characteristics. 62 older (M = 68 years) and 62 younger (M = 25 years) participants were split into three groups: The control group solved 11 tasks using a simulation of the TVM, the video group watched a brief instructional video before solving the same tasks with the same TVM, and the wizard group used a redesigned wizard interface instead. Results indicate that young and old participants’ performance improved after watching the video, but older participants improved more, reaching the effectiveness of the young control group. In the wizard condition, age differences in effectiveness and satisfaction were eliminated; however, speed differences remained in all conditions. The results suggest that the simple integration of minimal video instruction or a task-oriented wizard design can make public access systems truly universally usable, and that the wizard TVM was a true “walk-up-and-use system.”
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Affiliation(s)
- Michael Sengpiel
- Department of Psychology, Humboldt-Universität zu Berlin, Germany
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