plc產品生命週期分析 - 冰箱 網路行銷-3-何謂產品生命週期（Product Life Cycle）及長尾理論對其之影響. 58 ... 利潤下滑快速。 ４、衰退期：產品價格僅能打 ...
Product life-cycle management (marketing) - Wikipedia, the free ... For the engineering term, see Product lifecycle management. ... It is important for marketing managers to understand the limitations of the PLC model. It is difficult ...
