产品设计需要具有大局观，需要考虑到各方面的需求，任何只考虑单方面的需求，就会造成产品开发的失败。

在企业推行IPD的这些年，我越来越发现在产品需求评估与开发阶段，推行DFX这套方法越来越重要，因为DFX充分体现了并行工程的思想，即在设计阶段尽早地考虑产品生命周期各阶段各领域的各种要求，优化生产过程、提高生产效率、大大降低成本（据不完全统计，电子产品成本的70%是在设计阶段就决定了，设计缺陷流到后端，其解决费用会十倍、百倍增加），将有助于提高产品的竞争力。借助计算机等手段实现的DFX工具，可以有效地辅助产品设计工程师按照DFX进行产品设计。

但DFX方法本身不是设计方法，不直接产生设计方案，它是对候选设计进行评价、分析和优化的方法，为设计提供依据。

DFX方法的应用最终通过再设计实现产品的优化，它不仅用于改进产品本身，而且用于改进产品相关过程包括测试过程、制造过程和装配过程等等，和产品在整个生命周期的成本息息相关。就如成功故事都有默默无闻的幕后英雄一般，沉默的奉献者往往不被重视，难以得到光鲜的推介，DFX就是IPD体系的奉献者之一。

翻译：

Why should enterprises implement DFX?

Product design needs to have a big picture, need to take into account the needs of all aspects, any only consider unilateral needs, will cause the failure of product development.

During the years of IPD implementation in enterprises, I have increasingly found that it is more and more important to implement DFX in the stage of product demand assessment and development, because DFX fully embodies the idea of concurrent engineering, that is, to consider various requirements in various stages and fields of product life cycle as early as possible in the design stage. Optimizing the production process, improving production efficiency, and greatly reducing costs (according to incomplete statistics, 70% of the cost of electronic products is decided in the design stage, and the design defect flows to the back end, and its solution costs will increase ten times or a hundred times) will help improve the competitiveness of products. DFX tools implemented by means of computer can effectively assist product design engineers to design products according to DFX.

However, DFX method itself is not a design method and does not directly produce a design scheme. It is a method to evaluate, analyze and optimize the candidate design, and provide a basis for the design.

The application of DFX method finally realizes product optimization through redesign, which is not only used to improve the product itself, but also to improve the product-related processes including testing process, manufacturing process and assembly process, etc., which is closely related to the cost of the product in the whole life cycle. Just as success stories have unknown behind-the-scenes heroes, silent devotees are often not valued. It is difficult to get a bright promotion, DFX is one of the devotees of the IPD system.