While you can program a theme entirely with PHP, a theme engine provides a framework for development and can save time.

可以完全使用PHP编写主题，但是主题引擎提供了一个开发主题的框架，使用它可以节省时间。

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Some implementations are loosely coupled and externalized, but use a proprietary rule engine or proprietary programming framework.

有些实现被松散耦合和外部化，但使用一个自主规则引擎和自主编程框架。

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Rules framework hides the rule engine and enables selection of different rule engines.

规则框架隐藏了规则引擎，使得可以选择不同的规则引擎。

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Backed by Warburg Pincus, Benchmark Solutions has spent about 40 million developing its Market Calibrated Framework engine which, the company says, has algorithms that work like an experienced trader in pricing bonds.

FORBES: Delivering Transparency To Fixed Income Markets

During the class, we walked through my Desire Engine framework, a four-step cycle that creates preferences and usage habits.

FORBES: How Investment Drives Engagement

If we think of Watson as a framework and integration engine for aggregating medical big data sources we may be able to fight the next war instead of the last one.

FORBES: Watson: Fighting the Last War