The simulation for conceptual design using the particles methodologies

Attractive products are changed significantly by requirement definition and conceptual design phases. Quality of product concept, which is result of these phases, depends heavily on creativity of designer or development team. Therefore, it is difficulty that computer-aided system supports a creative and inventive thinking process, to search a creative design solution. To overcome its difficulty, we develop the synthesis approach which combined the Particle Swarm Optimization (PSO) algorithm and the Particles Method of Unified Structured Inventive Thinking (USIT) for supporting to top-down thinking in the problem solving process. The validity of this approach is discussed through the case problem.