Unified Interface for Visually Impaired Students
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Solution Overview
Problem
Existing computer-based testing systems lack accessibility for visually-impaired students, particularly in drag and drop interactions, which are not easily adaptable using standard approaches.
Innovation Solution
The implementation of an ordered interaction task in a graphical user interface, segmented into sub-regions, with non-visual prompts and presentations via screen readers, allowing visually-impaired users to interact through audio or tactile means.
Engineering Contradictions & Design Principles
Engineering Contradiction Analysis
1Ease of operation
If drag and drop interaction is used for sentence completion tasks, then ease of operation is improved for sighted users, but accessibility deteriorates for visually-impaired students
Solution Approach 1:
The system provides a single unified interface that serves both sighted and visually-impaired students through multiple interaction modes. The sentence completion task can be completed through drag and drop for sighted users or through audio selection for visually-impaired users, eliminating the need for separate test versions while maintaining accessibility and ease of operation for all users
Solution Approach 2:
The system introduces an intermediary audio interface that translates visual drag and drop operations into audio-based selections. Screen readers and audio prompts act as mediators between the task interface and visually-impaired students, allowing them to interact with sentence completion tasks using auditory feedback and voice commands rather than visual drag and drop gestures
2Adaptability or versatility
If twinning approach is used to create alternate test versions, then accessibility is improved for students with disabilities, but device complexity and resource requirements worsen
Solution Approach 1:
Instead of creating separate test versions, the system implements a universal test platform that adapts to different user needs through configurable interaction modes. The same sentence completion task is presented to all students, but the interaction method adjusts based on user preferences or accessibility settings, eliminating the complexity of maintaining multiple test versions while preserving accessibility
Solution Approach 2:
The system dynamically adjusts the interaction interface based on user needs without requiring separate static test versions. The interface can switch between visual drag and drop mode and audio-based selection mode, allowing the same test content to be accessible to different user groups through dynamic adaptation rather than through creating multiple fixed versions
3Adaptability or versatility
If twinning approach is used to create alternate test versions, then accessibility is improved for students with disabilities, but time and resources required worsen
Solution Approach 1:
The system creates a single universal test version that can be accessed by all students regardless of visual impairment. By implementing multiple interaction modes within one test interface, the system eliminates the time and resources required to create, maintain, and administer separate test versions while ensuring equal accessibility for all students
4Ease of operation
If standard drag and drop interaction is used, then ease of operation is improved, but adaptability to different user needs deteriorates
Solution Approach 1:
The system implements a unified sentence completion interface that supports both drag and drop interaction for sighted users and audio-based selection for visually-impaired users. This multi-functional approach maintains the intuitive ease of drag and drop while adding adaptability for different user needs through alternative interaction modes within the same interface
Solution Approach 2:
The interaction interface dynamically adapts between visual drag and drop mode and audio-based selection mode based on user preferences or accessibility requirements. This dynamic flexibility allows the system to maintain ease of operation for sighted users while providing adaptability for visually-impaired students without requiring separate interfaces
Data Source
AI summary
An ordered interaction task is initiated in a graphical user interface. A main region of the graphical user interface is segmented into a plurality of discrete sub-regions, each sub-region including content of the ordered interaction task. The user is then prompted to begin the ordered interaction task through a non-visual prompt that is provided concurrently with the graphical user interface. In response to a first user-initiated command received in the graphical user interface, a non-visual presentation of at least a portion of the content of at least one sub-region is provided concurrently with the graphical user interface.