变化还可用于指定产品替换。

Variations may also be used to identify product replacements.

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企业架构师可能发现某些功能是通用的，可以通过第三方厂商提供的产品替换掉。

Enterprise architects may find that some of the functions are generic and can be replaced by offerings from third party vendors.

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这种新趋势也是一个关于计划性淘汰的好例子，即设计一个很快就不流行或无法使用随后需要替换的产品。

The new trend was also a great example of planned obsolescence, that is, to design a product so that it will soon become unfashionable or impossible to use and will need replacing.

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Some of this can be done if consumers make different choices in what they eat, but some can be silent changes too, so Frito-Lay taking the Trans fats out of their products and switching them with a healthier fat is a silent change that could have a positive impact on public health.

有些只要消费者选择其它的食物即可做到,但也有些变化是悄无声息的,菲多利将其产品中的反式脂肪,替换成更健康的脂肪就并未声张,这对大众健康有着积极的影响

耶鲁公开课 - 关于食物的心理学、生物学和政治学课程节选