Theory And Method For User Experience Oriented Product Ecosystem Design

With the increasing competition and the profound change of competition factors,the manufacturing industries are facing great challenges,which require restructuring of enterprise internal and external relationship,rebuilding value chain and competition pattern,shifting to system of systems that integrated products and services from the traditional product design,to adapt external changes and meet the increasingly diverse user needs.Product Ecosystem is a new innovation paradigm of complex system of systems.Product ecosystem is a system that integrated products,services and its combination,to sustainably meet the needs of users in a series of related experience events,mutually beneficial symbiosis for its stakeholders.The advantages of product ecosystem are it could integrate products and services across borders to meet diverse user needs,increase user experience,and gain more competitive advantages.However,the current researches on product ecosystem are generally focused on theoretical area of product ecosystem concept,pattern and framework,etc.there is lack of effective design techniques and methods for product ecosystem design,to guide product ecosystem transformation for industrial enterprises.Therefore,focusing on the key issues surrounding user experience oriented product ecosystem design,The following studies are carried out in this dissertation:(1)Conceptual framework for User Experience oriented Product Ecosystem design.Related concepts are defined.The systematic framework for User Experience oriented Product Ecosystem design are constructed.Design processes and key technologies are also developed to support the framework,which could provide transformation guidance to product ecosystem.(2)Value network architecture for Product ecosystem.The process and method of identifying and integrating the ecosystem stakeholders value are proposed.the relevant user,organization,system and environment stakeholders are identified based on role interaction model.The value identification matrix are designed to reveal stakeholders' value,which are including economic,psychological,social and ecological value,to constructing sustainable value network in order to satisfy diverse user needs.(3)Value transformation to product and service requirements.The user experience events tree and the events cycle model are proposed to derive product and service requirements.A comprehensive analysis method based on user evaluation and expert group decision making approach is proposed,which avoids subjectivity,fuzziness and uncertainty of the decisionmaking process of requirement importance assessment.(4)User experience modeling and evaluation under fuzzy condition.User experience service blueprint is proposed to transform the product and service requirements into characteristics of design element.User experience structure(Usability,Emotional and Cognitive experience)and its mapping relationship with design elements are constructed for fuzzy expression of user experience.A User Experience based Fuzzy Reasoning Petri Nets method is present to quantify user experience level under fuzzy conditions.(5)Product ecosystem evolution based on User Experience.The evolution strategies and process of product / service design element are constructed,which are including Trimming,Swapping,Attaching and Variation strategy.Characteristics of design elements contradiction resolution matrix is established to resolve the parameters contradiction in the process of evolution,which helps to creatively problem solving and avoid design compromise.Based on fuzzy maximum spanning tree and Vague TOPSIS method,product design elements division and optimization techniques are proposed,which is beneficial to design elements structural reorganization,knowledge update and maintenance.In this paper,the feasibility and effectiveness of the proposed method and technology are verified by refrigerator ecosystem and healthcare ecosystem.With the implementation of user experience oriented product ecosystem design,the results show that it could meet diverse user needs,increase user experience,mutual benefit the relevant stakeholders,and increase system competitive advantage.This research provides a reference for the enterprise transformation to product ecosystem.