Conference Agenda

Axiomatic Design detects technical contradictions through

the analysis of the Design Matrix that makes evident the dependencies

between functional requirements (FR) and design parameters (DP). For

this purpose, it is required that the set of FR is complete; a missing re-

quirement leaves no cell in the matrix, so the conflict to be revealed stays

hidden. Requirements cannot be expressed because they are taken for

granted, overlooked, or simply unknown, making specification complete-

ness hard to guarantee. This paper proposes a method in which a Large

Language Model (LLM) assists the designer during each decomposition

step by suggesting sub-functions, requirements, and parameters, includ-

ing elements that the designer may not have considered. In the proposed

approach, the designer validates each suggestion to ensure the final set

remains under the designer’s control. The method is demonstrated in an

emblematic case study, the western hand saw, where evident contradic-

tions can be revealed. This case is compared with the oriental hand saw,

which resolves some of these contradictions. A verification across three

open-weight LLMs shows that the models reliably replicate the expert’s

decomposition and requirement discrimination, correctly distinguishing

the two concepts, while the independent filling of the design matrix is

the most fragile step; the designer’s judgment remains essential.