关键词: 协同产品创新系统, 知识扩散, SIS模型, 元胞自动机

Abstract: To improve the success rate of new product development,from the view of micro knowledge exchange among knowledge subjects,the process and rules of knowledge diffusion among knowledge subjects,collaborative teams and knowledge subjects and collaborative teams were researched.By consulting SIS epidemic propagation,the process of Collaborative Product Innovation System (CPIS) knowledge diffusion was depicted,and the traditional cellular automata method was improved to better reflect the knowledge diffusion in CPIS.The Knowledge-SIS (K-SIS) model of CPIS knowledge diffusion was proposed.Through simulating the K-SIS model,the CPI knowledge diffusion process and rule was studied.The results demonstrated that the knowledge accessibility among teams was positively correlated with the knowledge diffusion performance;the CPIS knowledge introduction strategy and distribution pattern of initial knowledge introduction teams had significant influence on knowledge diffusion performance,specifically,the over-concentration and over-decentralization were both bad for knowledge diffusion;the random distribution,which reflected the flat organization structure was conducive to knowledge diffusion,while the monopolistic distribution and the small group distribution were not good for knowledge diffusion.

Key words: collaborative product innovation system, knowledge diffusion, susceptible-infected-susceptible model, cellular automata