Good methodologies address the fact that there will most likely be iterative attempts at implementing the policies and rules in a project as most policies and rules change over time.

因为大多数策略和规则会随时间变化，所以在项目中实现策略和规则很可能需要多次迭代，良好的设计方法应该适应这个现象。

youdao

Extending the JAAS in this way decreases the chances that you or another programmer will have to rewrite the code as the business rules change over the lifespan of the application.

用这种方法扩展JAAS减少了您或另一个程序员必须在应用程序生命周期内业务规则发生更改时重写代码的可能性。

youdao

Certainly, there is difference between experience and rules as the limitations change along with different angles of view.

当然，经验比之那种应用与万物的规律是有区别的，因为这是随立足点的不同，局限性也不断变化的。

youdao

The ones that are accepted in public speech change through the years as social rules change.

VOA: special.2010.02.14

Double check with your hotel what the state of affairs is before you trundle out to the market at 0400 local time, as the rules could change.

BBC: Tsukiji Market: Tokyo's famous seafood market

Newey described the new rules as the biggest change since flat-bottomed cars were introduced in 1983.

BBC: Red Bull expect wins from new car

Plus the 9-9-9 Plan is a transitional plan, meaning that the rules are supposed to change again as Cain moves the country to a complete sales tax regime.

FORBES: Herman Cain Is A Great Presidential Candidate, But 9-9-9 Is A Bad Plan