Abstract
The first step in product planning is to understand the needs of the customer. Next, one needs to design the track. Try some of the design, and design things so it sells Once (physically) to make. This happens roughly divided into product planning tasks. So the needs of "understanding" and how I would be. Originally Work Design, "Design of Work" was the aim of developing methodologies. Then, the design work has been shown that various things that can be applied to design work as well, in this study, the purpose (function) can be used very effectively to illustrate the need to discover the expansion method.
