First, in flush times companies tend to hire lots of engineers and the life of a product manager can turn into a constant rush to create the next PRD so that engineering has something to build.

首先，在兴盛时期，企业总是倾向于雇用太多的工程师，因此，产品经理的生活就成了一成不变的匆匆交付撰写的一个又一个PRD，以便让工程师有事情去做。

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PRD : Food Addtive, Food Flavour, Essencial Oil, Food Stuff, Heathy Food, Chemical Product, Enzyme, Spice, Compound Seasoning, Food Color.

食品添加物、香精、香料、食品加工原材料、健康食品原料、化工原料、酵素原料、各种调味料、香辛料、食用色素。

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You might be surprised how close in construct a PRD (product requirement document) is to a creative brief.

FORBES: Advertising as an App