Integrating Quality Function Deployment with Fuzzy Cognitive Maps for Resolving Correlation Issues in the Roof Matrix

The roof matrix represents correlations among engineering characteristics (EC) in the house of quality (HoQ) Quality Functions Deployment (QFD). Correlations are usually measured qualitatively and omitted analysis. However, ignoring them may cause duplication effort, decreased product performance, unsatisfied customer requirements (CR). Hence, this paper intends to propose an approach considering quantitatively. Fuzzy Cognitive Maps (FCM) were used for purpose. Additionally, Axiomatic Design (AD), examining relationships between CRs ECs, Analytic Hierarchy Process (FAHP) with Extent Analysis (EA) checking consistency evaluations. proposed was applied a sheet metal die making company ranking ECs. Results show that FCM enables analyzing quantitative practically. square also supports FCM’s adjacency structure successfully asymmetric Integrating into analysis resulted change final ranking. It helped determine most manageable better satisfiable CRs, critical/least