通过产品生命周期、竞争态势矩阵、波士顿矩阵分析明确了设计的方向，通过价值工程分析对产品进行了改进。
Through an analysis of life period of product, competition state matrix and Boston matrix, the design direction is made clear and through value engineering analysis, product is well improved.
通过产品生命周期、竞争态势矩阵、波士顿矩阵分析明确了设计的方向，通过价值工程分析对产品进行了改进。
Through an analysis of life period of product, competition state matrix and Boston matrix, the design direction is made clear and through value engineering analysis, product is well improved.
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