According to one embodiment, a CAD system includes a model building
section which builds a total model by combining shape models of frame
components and internal components of a designed appliance, a design
verification simulation executing section which executes analysis
simulation which serves design verification by running a simulation of
the total model built by the model building section in accordance with a
design specification, and a simulation result manipulating section which
forms a model from the total model modified in accordance with a result
of the analysis executed by the design verification simulation executing
section.