Physiological Sensing for Accessible Self-Service Terminal Interfaces
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Solution Overview
Problem
Conventional self-service terminals often fail to accommodate diverse user needs, particularly those with disabilities or varying physical abilities, due to a lack of intuitive and ergonomic design that is not optimized for individual user conditions, leading to accessibility issues.
Innovation Solution
A self-service terminal equipped with a sensing device to determine a user's physiological condition and adjust the user interface accordingly by selecting a predefined interface profile that optimizes the terminal's configuration for the user's specific needs, including reconfiguring graphical, auditory, and tactile components.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Adaptability or versatility
If the hardware is optimized for a standing adult, then the operation concept becomes intuitive for the maximum possible group of persons, but persons such as children or wheelchair users cannot access the full extent of hardware
Solution Approach 1:
The terminal automatically adjusts the user interface configuration based on detected user characteristics. The system dynamically changes parameters such as button sizes, display positions, and interaction methods to accommodate different user groups including wheelchair users, children, and standing adults, making the hardware accessible to all without requiring manual reconfiguration
Solution Approach 2:
The terminal modifies interface parameters such as graphical element sizes, audio output levels, and tactile feedback intensities based on the detected user profile. These parameter changes allow the same hardware to serve multiple user groups effectively, with adjustments made automatically when a user approaches or interacts with the terminal
2Adaptability or versatility
If conventional hardware is optimized for the maximum possible group of persons, then the operation concept is intuitive for most users, but the configuration fails to fit best for all persons
Solution Approach 1:
The terminal implements a universal interface system that can function for multiple user types simultaneously. By detecting user characteristics and automatically selecting appropriate interface configurations, the terminal provides reliable usability for specific user needs while maintaining universal accessibility across different user groups
Solution Approach 2:
The system uses sensing devices to detect user characteristics and provides feedback by automatically adjusting the interface configuration. This closed-loop feedback mechanism ensures that the terminal adapts to each user's specific needs, improving reliability for individual user groups while maintaining broad adaptability
3Ease of operation
If accessibility options are added for disabled persons, then the terminal becomes more inclusive, but the operation concept becomes less intuitive and more cost intensive
Solution Approach 1:
The terminal automatically detects user characteristics and configures the appropriate interface without requiring manual selection or complex setup by the user. This self-service approach eliminates the need for users to navigate complex accessibility settings, maintaining intuitiveness while providing comprehensive accessibility support
Solution Approach 2:
The system pre-configures multiple interface profiles for different user types and automatically selects the appropriate profile based on detected user characteristics. This preliminary preparation of interface configurations allows the terminal to provide accessibility options without requiring complex real-time adjustments or user intervention
Data Source
AI summary
According to various aspects, a self-service terminal (100) may include: a user interface (1008) accessible to a user of the self-service terminal (100); a sensing device (206) configured to sense information about the user; a control device (106) configured to: determine a physiological condition of the user based on the information; select an interface profile from a plurality of predefined (e.g., saved) interface profiles based on the physiological condition; instruct a reconfiguration of the user interface (1008) based on the selected interface profile.