-	The research has a new topic and very good images, but there is no a research objective or research methodology. So, results or conclusions can not be expected.
-	The virtual environment has an important role in the design process as it is a design medium. The research objective or question might be: to what extent, or on what point (visual design thinking, form creation, conceptualization, etc.). Or it could be what is the role of three classification mentioned in the research? Can a comparison be made?
