Abstract
The study seeks to fulfil the ultimate step of the previous researches on demand chain concepts within manufacturing environments, with a specific focus on sustainability criteria. In this case, New Product Development (NPD), Industry 4.0 and smart manufacturing act as effective tools towards production of updated products facilitating both business survivability and customer satisfaction. This paper utilizes a brief overview of the literature studies as a knowledge platform and further investigates the case of two German manufacturing companies using a mixed research method. The outcomes and findings will then be analyzed to examine the study hypothesis towards creation of a comprehensive conceptual framework defining interconnections between NPD and Sustainable Demand Chain Management (SDCM) within global manufacturing domain. The novelty of this research is to develop the results of previous stages of this study including comparison of practices within several manufacturing companies in terms of the linkage between SDCM and NPD projects. This will be completed by creation of the main conceptual framework of this study introducing the new concept called sustainable demand-driven product development (SDPD).