In order to establish responsive information from design to support an autonomous machining operation, the generative automated process planning is proposed. The proposed concept has two main parts, a TRV extractor and a machine process planner. In this paper, pre-defined total removal volume (TRV) is used to recognize features which constitute the volume that needs to be removed in shaping features. In the process planner, the machining processes are planned using TRV geometry characteristics. In this proposal, vertical machining center is used for preliminary study of the applied concept. The robustness of the methodology is tested using several prismatic parts previously tested in related research on process planning.