Abstract: Aiming at the changes of business logic in dynamic environments，the business process model BPM4DBL （Business Process Model for Dynamic Business Logic） is built by business rules and process flows.BPM4DBL includes activities，rules and event elements，defines the tuple of separating business rules and process flows，presents the coupling strategy between business rules and process flows.Finally，a case study is presented.

Key words: business process model, business rules, process flows

摘要：

针对动态环境中业务逻辑的不断变化，通过业务规则和过程流分别描述业务过程中的易变和相对稳定业务逻辑，构建了业务过程模型BPM4DBL（Business Process Model for Dynamic Business Logic）。模型引入了活动、规则和事件元素，定义了分离业务规则和过程流的元组表达，并且给出了业务规则和过程流之间的耦合策略。最后，给出了一个BPM4DBL的具体应用实例。

关键词: 业务过程模型, 业务规则, 过程流