As the name implies, each if-then rule consists of a Boolean expression that determines whether to execute one or multiple actions specified in the then clauses.
和其名称一样，每个if - then规则包含一个Boolean表达式，用于确定是否执行在then子句中指定的一个或多个操作。
A simple way of doing this within a BPEL business process is retrieving a business rule before performing an activity which returns a Boolean indicating if the activity is enabled or disabled.
在BPEL业务流程中进行此工作的一个简单方法是执行活动前检索业务规则，此业务规则返回一个boolean值，指示此活动是已启用还是已禁用。
Rough sets theory provides a framework in which indiscernibility relations and Boolean reasoning form a foundation for data reduction and decision rule generation.
粗糙集理论的概念性框架之一就是利用不可分辨关系和布尔推理作为数据约简和获取决策规则的基础。
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