The purpose of this research is to develop a methodology and a prototype system that allows the integration of product design and manufacturing planning. The task is achieved through an integrated CAD-CAPP-CAFP# environment. The system consists of three major modules, namely, Feature Analyzer, Process Planner and Fixture Planner. The manufacturing information of a part required for process and fixture planning is extracted from the 3-D geometric model and the 2-D engineering drawing, thereby both geometric and non-geometric attributes of a part can be obtained. An integrated approach to process and fixture planning is adopted to ensure that the process plan for a part is generated on the basis of a workable fixture plan. The approaches to feature analysis and to integrating process and fixture planning are introduced.