How sustainable is smart PSS? An integrated evaluation approach based on rough BWM and TODIM Abstract   Smart ProductService Systems (PSS) integrates smart products and eservices into a total solution with Information and Communication Technology (ICT). It is necessary to assess the Smart PSS from the perspective of sustainability in the early design phase to reduce potential failure to meet the environmental and social requirements in delivery stage. However, the existing PSS evaluation frameworks consider less about characteristics of digitalization and smartness. Moreover, the previous criteria weighting methods for PSS evaluation becomes time consuming and frustrating when comparing too many criteria to determine the weights for criteria. In addition, the existing PSS evaluation methods often omit decision makersxe2x80x99 bounded rationality and vagueness of judgements. To solve these problems, a novel method is proposed by integrating the merit of Best Worst Method (BWM) in reducing the decision makersxe2x80x99 burden of pairwise comparisons of criteria importance, the strengths of TODIM (an acronym in Portuguese of Interactive and MultiCriteria Decision Making) in dealing with decision makersxe2x80x99 bounded rationality and the flexibility of Rough Set Theory (RST) in handling vagueness without prior information. Finally, a case study of sustainability evaluation for smart airconditioner PSS is used to validate the effectiveness and efficiency of the proposed method.

Analyzing barriers for adopting sustainable online consumption: A rough hierarchical DEMATEL method Abstract   Sustainable online consumption is attracting attention in both the academic and managerial communities. Identifying and analyzing the barriers of sustainable online consumption is critical to its successful implementation. However, the previous approaches often assume that the barriers are equally important in manipulating the interrelationships among barriers, and they need auxiliary information or preassumptions (e.g. preset fuzzy membership functions) in dealing with vague information, which will influence the accuracy of the barrier analysis results. To solve the problems, an integrated method based on improved DEMATEL, ISM and rough set theory is developed in this paper. The proposed method integrates the strength of improved DEMATEL approach in exploring causeeffect relationships considering the impact of barrier strength on the relationships, the advantage of ISM method in building the hierarchical structure of elements, and the merit of rough number in manipulating the vagueness without any auxiliary information or preassumptions. Finally, an application in a large ecommerce company is provided to show the feasibility and effectiveness of the proposed method.