它向我们展示了业务规则的一个重要特点：它是动态的，换言之，它具有随着业务环境的改变做出反应的能力。
This brings us to a key aspect of a business rule: how dynamic it is, or, its ability to respond to a changing business environment.
它是一个全面的组合工作产品，封装了所有的服务、提供者、规则、分区、消息、协作及其关系。
It is a comprehensive, composite work product encompassing all services, providers, specifications, partitions, messages, collaborations, and the relationships between them. It is needed to.
这个项目叫做Drools，它是一个用来在应用程序内开发基于规则的专家系统的系统。
This project — called Drools — is a system for developing a rules-based expert system within an application.
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