70% of all product innovations are driven by market need, and more than half of the innovations made in many industries are the result of consumers guiding or adding value to a producer's new concept. This article points out the importance of observing cu

【書誌情報】

ページ数：3ページ

サイズ：A4

商品番号：HBSP-U9807C

発行日：1998/7/1

登録日：2007/8/16