Hence, an initial set of requirements isn't likely to be good enough, but an active requirements management strategy can iteratively improve the requirements into something that will satisfy users.

这样，一个初始设定好的需求集似乎并不是很好，但一种主动的需求管理策略可以迭代的改进当前的需求，满足用户需要。

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Style investing is an active management strategy whereby an investor overweighs their portfolio to growth or value stocks in an attempt to outperform the broad market.

FORBES: Investing in Style with Index Funds

There is always debate among investors as to whether style investing using index funds or a style-based asset class fund is an active management strategy or a passive one.

FORBES: Investing in Style with Index Funds

In a similar fashion, you can create a broadly diversified portfolio but choose an active management strategy instead of simply buying and holding to track the major indexes (which is passive management).

FORBES: 4 Ways To Use ETFs In Your Portfolio