X-SYS: A Reference Architecture for Interactive Explanation Systems

Fuente: arXiv
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Autores principales: Labarta, Tobias, Hoang, Nhi, Dreyer, Maximilian, Berend, Jim, Hein, Oleg, Ma, Jackie, Samek, Wojciech, Lapuschkin, Sebastian
Formato: Preprint
Publicado: 2026
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author Labarta, Tobias
Hoang, Nhi
Dreyer, Maximilian
Berend, Jim
Hein, Oleg
Ma, Jackie
Samek, Wojciech
Lapuschkin, Sebastian
author_facet Labarta, Tobias
Hoang, Nhi
Dreyer, Maximilian
Berend, Jim
Hein, Oleg
Ma, Jackie
Samek, Wojciech
Lapuschkin, Sebastian
contents The explainable AI (XAI) research community has proposed numerous technical methods, yet deploying explainability as systems remains challenging: Interactive explanation systems require both suitable algorithms and system capabilities that maintain explanation usability across repeated queries, evolving models and data, and governance constraints. We argue that operationalizing XAI requires treating explainability as an information systems problem where user interaction demands induce specific system requirements. We introduce X-SYS, a reference architecture for interactive explanation systems, that guides (X)AI researchers, developers and practitioners in connecting interactive explanation user interfaces (XUI) with system capabilities. X-SYS organizes around four quality attributes named STAR (scalability, traceability, responsiveness, and adaptability), and specifies a five-component decomposition (XUI Services, Explanation Services, Model Services, Data Services, Orchestration and Governance). It maps interaction patterns to system capabilities to decouple user interface evolution from backend computation. We implement X-SYS through SemanticLens, a system for semantic search and activation steering in vision-language models. SemanticLens demonstrates how contract-based service boundaries enable independent evolution, offline/online separation ensures responsiveness, and persistent state management supports traceability. Together, this work provides a reusable blueprint and concrete instantiation for interactive explanation systems supporting end-to-end design under operational constraints.
format Preprint
id arxiv_https___arxiv_org_abs_2602_12748
institution arXiv
publishDate 2026
record_format arxiv
spellingShingle X-SYS: A Reference Architecture for Interactive Explanation Systems
Labarta, Tobias
Hoang, Nhi
Dreyer, Maximilian
Berend, Jim
Hein, Oleg
Ma, Jackie
Samek, Wojciech
Lapuschkin, Sebastian
Artificial Intelligence
Human-Computer Interaction
Software Engineering
68t01 (Primary), 68u35 (Secondary), 68t05 (Secondary)
D.2.11; H.5.2; H.3.3; I.2.6
The explainable AI (XAI) research community has proposed numerous technical methods, yet deploying explainability as systems remains challenging: Interactive explanation systems require both suitable algorithms and system capabilities that maintain explanation usability across repeated queries, evolving models and data, and governance constraints. We argue that operationalizing XAI requires treating explainability as an information systems problem where user interaction demands induce specific system requirements. We introduce X-SYS, a reference architecture for interactive explanation systems, that guides (X)AI researchers, developers and practitioners in connecting interactive explanation user interfaces (XUI) with system capabilities. X-SYS organizes around four quality attributes named STAR (scalability, traceability, responsiveness, and adaptability), and specifies a five-component decomposition (XUI Services, Explanation Services, Model Services, Data Services, Orchestration and Governance). It maps interaction patterns to system capabilities to decouple user interface evolution from backend computation. We implement X-SYS through SemanticLens, a system for semantic search and activation steering in vision-language models. SemanticLens demonstrates how contract-based service boundaries enable independent evolution, offline/online separation ensures responsiveness, and persistent state management supports traceability. Together, this work provides a reusable blueprint and concrete instantiation for interactive explanation systems supporting end-to-end design under operational constraints.
title X-SYS: A Reference Architecture for Interactive Explanation Systems
topic Artificial Intelligence
Human-Computer Interaction
Software Engineering
68t01 (Primary), 68u35 (Secondary), 68t05 (Secondary)
D.2.11; H.5.2; H.3.3; I.2.6
url https://arxiv.org/abs/2602.12748