Functional analysis of systems using a Functional Basis

This paper details a step toward introducing an electromechanical Functional Basis into the functional modeling stage of the systems engineering process. The Functional Basis proposed by Hirtz et al. gained visibility in the product design community, but it has had limited exposure in the systems engineering community. The purpose of this paper is to propose the addition of a functional modeling technique that uses this Functional Basis to the systems engineering process. The models proposed in this paper achieve a higher degree of detail earlier in the process than models created using classical system engineering methodologies, although those without prior exposure to this methodology found it difficult to use the functional model. The value of the proposed approach is demonstrated through an example case, verified based on stakeholder input through interviews.