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In ship design, existing specifications are repeatedly modified in response to shipowner requests. In this process, there are components that are simultaneously changed for design-related reasons, but the relationships among components have been established based on the tacit knowledge of designers owing to a large number of ship components. In this study, we identify specifications that change simultaneously by using Cramer's V. By leveraging the macro-level granularity, the designers can perform efficient checks and create a Design Structure Matrix (DSM). Additionally, the components are grouped by performing DSM clustering, which reflects whether specification changes occur within or outside the department. A case study is conducted using the actual specifications of a merchant’s vessel to demonstrate the effectiveness of the proposed method. Consequently,accurate relationships among components are extracted, and the departments that must collaborate with each other are identified.

Keywords:

Shipbuilding, specification change, Cramer’s V, DSM clustering