LLM-Driven Accessible Interface: A Model-Based Approach

Fuente: arXiv
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Autori principali: Jerry, Blessing, Moreno, Lourdes, Francisco, Virginia, Hervas, Raquel
Natura: Preprint
Pubblicazione: 2026
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author Jerry, Blessing
Moreno, Lourdes
Francisco, Virginia
Hervas, Raquel
author_facet Jerry, Blessing
Moreno, Lourdes
Francisco, Virginia
Hervas, Raquel
contents The integration of Large Language Models (LLMs) into interactive systems opens new opportunities for adaptive user experiences, yet it also raises challenges regarding accessibility, explainability, and normative compliance. This paper presents an implemented model-driven architecture for generating personalised, multimodal, and accessibility-aligned user interfaces. The approach combines structured user profiles, declarative adaptation rules, and validated prompt templates to refine baseline accessible UI templates that conform to WCAG 2.2 and EN 301 549, tailored to cognitive and sensory support needs. LLMs dynamically transform language complexity, modality, and visual structure, producing outputs such as Plain-Language text, pictograms, and high-contrast layouts aligned with ISO 24495-1 and W3C COGA guidance. A healthcare use case demonstrates how the system generates accessible post-consultation medication instructions tailored to a user profile comprising cognitive disability and hearing impairment. SysML v2 models provide explicit traceability between user needs, adaptation rules, and normative requirements, ensuring explainable and auditable transformations. Grounded in Human-Centered AI (HCAI), the framework incorporates co-design processes and structured feedback mechanisms to guide iterative refinement and support trustworthy generative behaviour.
format Preprint
id arxiv_https___arxiv_org_abs_2601_06616
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle LLM-Driven Accessible Interface: A Model-Based Approach
Jerry, Blessing
Moreno, Lourdes
Francisco, Virginia
Hervas, Raquel
Human-Computer Interaction
H.5.2; J.3; K.4.2; H.1.2; I.2.7
The integration of Large Language Models (LLMs) into interactive systems opens new opportunities for adaptive user experiences, yet it also raises challenges regarding accessibility, explainability, and normative compliance. This paper presents an implemented model-driven architecture for generating personalised, multimodal, and accessibility-aligned user interfaces. The approach combines structured user profiles, declarative adaptation rules, and validated prompt templates to refine baseline accessible UI templates that conform to WCAG 2.2 and EN 301 549, tailored to cognitive and sensory support needs. LLMs dynamically transform language complexity, modality, and visual structure, producing outputs such as Plain-Language text, pictograms, and high-contrast layouts aligned with ISO 24495-1 and W3C COGA guidance. A healthcare use case demonstrates how the system generates accessible post-consultation medication instructions tailored to a user profile comprising cognitive disability and hearing impairment. SysML v2 models provide explicit traceability between user needs, adaptation rules, and normative requirements, ensuring explainable and auditable transformations. Grounded in Human-Centered AI (HCAI), the framework incorporates co-design processes and structured feedback mechanisms to guide iterative refinement and support trustworthy generative behaviour.
title LLM-Driven Accessible Interface: A Model-Based Approach
topic Human-Computer Interaction
H.5.2; J.3; K.4.2; H.1.2; I.2.7
url https://arxiv.org/abs/2601.06616