This paper explores base part identification in mechanical assemblies using interaction graphs. It presents a methodology for analyzing and migrating toward a star architecture during product redesign, where the base part is the central element in the design upon which assembly variations can be configured, thus making it possible to migrate toward modular design architecture. This paper reviews past work related to architectural orientations, part interfaces, and part connectivity. A methodology for architecture analysis during product redesign is then presented using a computer mouse example.

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