A large part of design complexity is originated during the concept generation phase when coupling relationships are established between functional requirements and design parameters. Therefore, one of the important tasks in concept improvement is to properly manage the sequence of these functional couplings to minimize the design complexity. This paper introduces a new method, called Design Coupling Sequence (DCS), which, given a design matrix generated during conceptual design, can symmetrically guide the designer through this sequencing task to reduce the design complexity. DCS is developed with sound foundations from logics and mathematics, and useful in engineering practice as real-world design tasks become increasingly complex.

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