Christiansen, Finn HendrikFinn HendrikChristiansenInselmann, PascalPascalInselmannKrause, DieterDieterKrause2025-01-132025-01-13202435th Design for X Symposium (DfX 2024)https://tore.tuhh.de/handle/11420/53148The contribution addresses the integration of lightweight design principles into the product development process while managing the challenges posed by increasing product variety. The paper highlights the conflict between the necessity for weight optimization and the proliferation of product variants driven by market trends. It proposes using multi-model optimization (MMO) to resolve this conflict. By implementing MMO, weight reduction can be achieved in components and modules, before and after the modularization process. The paper details how MMO can be applied at different stages of product development. This approach supports economic constraints and improves the overall product structure through iterative optimization of interfaces and modules.enConference Paper10.35199/dfx2024.05Conference Paper