B. Three –dimensional design expression
The shortcoming of two-dimensional design expression is
that one picture can only show one aspect of the designed
product and cannot let consumers observe the product form
other perspectives. If designer want to show his designed
product in other perspective, he has to draw another picture.
All industrial products are three-dimensional, so should be
presented and expressed in three dimensions. Threedimensional
product design softwares can make it [5-6]. As
shown in Figure 3, designer draws the design sketch first and
then constructs three-dimensional digital model in threedimensional
product design software. This let him be able to
presentt his design in different perspectives. Consumers can
also benefit from this. They can overall learn the product and
exchange views with designers at product design stage. This
can reduce product development risk greatly.