中文摘要：

研发项目是由流程架构、组织架构和产品架构组成的复杂系统．本文首先分析了研发项目复杂性的特征、分类和产生原因，指出设计结构矩阵（DSM）方法是量化分析复杂研发项目的有效工具．进一步，本文从流程架构中迭代和重叠的建模，到流程DSM的排序优化与仿真；从组织架构中团队之间依赖度的测度，到组织DSM聚类准则的确定；从产品架构中部件之间依赖度的测度，到产品DSM的模块化设计以及聚类算法的演变和发展；从单一领域的DSM扩展到多领域矩阵（MDM）的建模与应用，清晰地展示了基于DSM的复杂研发项目建模与优化的几条研究脉络和最新研究进展．最后，本文提出“系统架构的复杂性研究-DSM中元素间依赖关系的测度-DSM优化／聚类”相集成的理论分析框架，并指出了有待进一步研究的关键问题．

英文摘要：

R＆D projects are complex systems composed by process architecture, organization architecture and product architecture. Firstly, we analyze the features, categories and causes of complexity in R＆D projects, and argue that the design structure matrix （DSM） is a quantitative tool to analyze complexity effectively. Further, this paper summarizes the progress in modeling and optimization for complex R＆D projects based on DSM and elaborates it in the following frame： from modeling iteration and overlapping in process architecture to sequencing optimization and simulation of process DSM; from measuring de- pendencies between teams in organization architecture to identifying clustering criterion of organization DSM; from estimating dependencies between components in product architecture to modularity design in product DSM, as well as the evolution and development of DSM clustering algorithm; from modeling and application in single domain DSM extending to multi-domain matrix （MDM）. Finally, this paper proposes an integrated analysis frame that is exploring complexity of system architecture, measuring dependencies between elements in DSM and optimizing/clustering of DSM. Directions of future research in this field are presented.