🤖 AI Summary
This study presents the first empirical investigation into the ability of large language models (LLMs) to comprehend and apply complex semantic constraints in human-centric, multi-level modeling aligned with Industry 5.0 principles. Using six prompting strategies, the authors elicited GPT-5.4, Claude Opus 4.6, and Gemini 3.1 Pro to generate multi-level warehouse models conforming to the SLICER language specification. Model outputs were evaluated against a human-authored benchmark across fourteen metrics assessing syntactic and semantic correctness. Results indicate high syntactic accuracy but limited semantic fidelity, with instantiation and specialization correctness ranging from 52% to 79%. Among the models, Claude demonstrated the most balanced performance. Furthermore, self-checking mechanisms proved effective only for explicit rules and failed to enhance deeper design alignment. The findings highlight critical limitations in LLMs’ capacity for implicit structural reasoning and constraint satisfaction.
📝 Abstract
Industry 5.0 emphasises human-centric industrial system design, placing additional demands on modelling tools. Multi-level modelling (MLM) can directly represent three or more abstraction levels, but this comes at the cost of more complex semantic constraints that model correctness depends on. Large Language Models (LLMs) have been increasingly studied in model-driven engineering, but this evidence rests entirely on two-level modelling tasks, and whether it generalises to MLM, whose semantics differ in kind, remains untested. This paper presents the first empirical study of this question. We have three commercial LLMs (GPT-5.4, Claude Opus 4.6, and Gemini 3.1 Pro) generate multi-level models for the MULTI Warehouse Challenge in the SLICER language under six prompting strategies, yielding 90 generated models compared against a manually validated reference using fourteen metrics. Syntactic correctness is within reach, but semantic correctness is only partially achieved, with Instantiation/Specialisation Correctness ranging from 52% to 79%. Models reproduce content stated explicitly in the task text, but rarely complete structure and constraints the text implies without stating. Prompting strategies trade off precision against completeness, and self-checking functions mainly as a rule checker rather than reliably improving alignment with the reference design. Among the three LLMs, Claude shows the most balanced profile. These results clarify the boundaries of current LLM capability for MLM and inform the design of human-centred, AI-assisted modelling workflows for Industry 5.0.