The paper reviews some historical developments in the quality function deployment (QFD) and extended house of quality (EHOQ) concepts that are popular for conveniently organizing product, process, and production planning information and for processing customer requirements. Since the inception of QFD in Japan in the early 1970s, it has met with varying degrees of success. This paper first reviews the literature and describes the EHOQ, which is a mature arrangement of QFD. Other related deployment techniques are examined, and a new concept called concurrent function deployment (CFD) is described. CFD is based on parallel deployment of several lifecycle "value plans" in addition ts the "quality plan" used in QFD. CFD thus gives rise to integrated templates, called house of values (HOV), which are compared to EHOQ templates. The differences and similarities between QFD and CFD are discussed.
