1. A design/verification aid system adapted to aid design of a product and verification of the design, comprising: a design processing unit that executes a CAD (computer aided design) process in accordance with an input operation command, the CAD process including: a part generation process to generate a part geometric model, a part addition process to add to the generated part geometric model a part geometric model corresponding to another part to generate a whole geometric model corresponding to a product under design, the whole geometric model including the generated part geometric model, a process to designate a part relation between the generated part geometric model and the part geometric model corresponding to another part based on inputted part relation information, the inputted part relation information includes an attribute information indicating a vibration source, and a part movement process to move a position of a predetermined part geometric model in the whole geometric model; an analytic model generation unit that, when the part geometric model is generated by the part generation process, generates an analytic model corresponding to the part geometric model; an analytic model edition unit that edits the generated analytic model in accordance with a content of either (i) the part addition process when the part addition process is executed, or (ii) the part movement process when the part movement process is executed, and generates a whole analytic model corresponding to the whole geometric model; and an analysis unit that executes an analysis process to analyze the whole geometric model on a basis of the whole analytic model generated by the analytic model edition unit, and displays an analytic result.