Design concept evaluation plays a critical role in the early phases of product development as it has a significant impact on the downstream development processes, as well as on the success of the product developed. In this work, a novel three-stage methodology has been developed. The preliminary stage screens all the criteria from different viewpoints using House of Quality (HoQ). The second st...

In general, it is difficult to select a satisfactory product concept because the information in the early stage of design process is subjective, qualitative, and even uncertain to design engineers. The correlations among engineering characteristics for a product concept also increase the complexity of conceptual design. Moreover, it becomes important to consider not only customer requirements b...

Technology maturity assessment metrics have played a key role in complex system acquisition and technology integration in both the defense and commercial sector. Of these, the U.S. Department of Defense’s (DoD’s) Technology Readiness Level (TRL) has been the de facto standard since it’s inception in the late 1990s. DoD adopted the use of TRLs to provide program managers with critical informatio...

Supplier evaluation and selection is an important group decision making problem that involves not only quantitative criteria but also qualitative factors incorporating vagueness and imprecision. This paper proposes a novel fuzzy multi-criteria group decision making framework for supplier selection integrating quality function deployment (QFD) and data envelopment analysis (DEA). The proposed me...

Sustainable supply chain management (SSCM) provides economic, social end environmental requirements in material and service flows occurring between suppliers, manufacturers and customers. SSCM structure is considered as a prerequisite for a sustainable success. Thus designing an effective SCM structure provides competitive advantages for the companies. In order to achieve an effective design of...