Through the product analysis at 6 major domestic manufacturers, an universal software is programmed with the commonness and differences from their man-machine interfaces.

通过对国内主要厂家6类产品的分析，找出人机界面的共性和差异而编辑通用软件。

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To elicit the requirements, identify the requirements commonness and variability correctly is the key for Software Product Lines(SPL) success, which needs a particular requirement process and methods.

准确获取产品线需求、识别需求的共性和可变性，是软件产品线（SPL）成功的关键。

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For the model reflects the commonness of products and their life cycle activity, the operability of green product assessment can be increased greatly.

该模型抓住了产品及其生命周期活动的共性，增强绿色产品评价的可操作性。

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