Research On Group Decision Making Method Of Multi-Objective Design Based On Preference Of Decision Maker

Networked collaborative design process is a modern product design process under computer-supported of the CSCW, which is one of the product design patterns that combined modern design theory and computer technology.Collaborative design is a collaborative product design process realized by experts from different fields, aiming at the product design goals, decomposing and distributing the design task and sharing the design resources in the distributed network supporting environment. There are many working design tasks in the process of collaborative design at the same time, resulting in dynamic uncertainty. Under this condition, since the multidisciplinary group staff from different areas with different knowledge background as well as different design goals, different personal preferences and community recognition in collaborative product development, there would be different design in the design process. And how to choose the relative optimal design from multiple solutions is one of the core problems in the current collaborative design research.Collaborative design process is accomplished by experts from different fields, and the experts always complete the design task according to their own knowledge. Due to the characteristics of parallelism in design process and concurrency of design subject, there would be different design scheme. In the process of product collaborative design scheme, because experts from different fields would make program decision for the same product design, the collaborative design scheme evaluation has the characteristics of group decision.In addition, there exist multiple evaluation objectives and decision-making experts focus on different evaluation target in the process of scheme evaluation,so collaborative design scheme evaluation has the characteristics of multi-objective group decision. At the same time, different decision-making experts have different domain knowledge, different individual preferences and different recognition between groups, so the collaborative design scheme decision-making process is a multi-objective group decision making problemwith individual preferences. How to effectively solve multi-objective group decision making problem of collaborative design scheme evaluation is the key content of this study.In this paper, the main work is as follows:( 1) On the basis of the analyzing the collaborative design scheme evaluation characteristics and evaluation strategy, the formalization description of the conflict process of collaborative design scheme evaluation was presented,and multi-objective group decision mathematical model of the collaborative design scheme evaluation was define.( 2) Based on particle swarm algorithm, by introducing the individual preference, the paper put forward the multi-objective particle swarm optimization(pso) algorithm based on decision preference, and applied technique for order preference by similarity to an ideal solution on grey relational analysis to sort the pareto solution set of collaborative design evaluation, got a relatively optimal solution of collaborative design scheme.(3)Finally, specific product collaborative design schemes were instantiated evaluated and analyzed by multi-objective group decision making method based on decision preference, which validated the effectiveness of the proposed method.