Abstract
An attribute (factor) and the design of the level are very important in the virtual experiment by using virtual product. However, usual approach restrains the number of attributes in consideration not to increase the panel burden. It is influenced by four points, the number of attributes and the number of levels, the number of products plan (profile cards), measurement scale (answer form), and the way of constructing products plan and the way of carrying it out. This paper discusses the approach to increase the quality and quantity of information by increasing the number of attribute.
