Abstract. Companies in today’s automotive industry are under immense competitive pressure to reduce the length of their product development cycle from initial concept to begin of high-volume manufacturing. A very costly and immensely knowledge-intensive step in this process is the creation of tools and dies required to manufacture a car body of a specified design. This paper presents a novel architecture for a decision support system that streamlines the development process through the integration of a virtual assembly simulation, problem identification, and solution generation and evaluation. Following the virtual functional build process, our architecture deploys a number of multiagent systems to provide system functionality, such as problem knowledge retrieval or solution generation and evaluation.