按照定义，一个系统是一个自我包含的实体，包括所有的需要满足其业务目的或任务的资源。
By definition, a system is a self-contained entity that includes all the resources needed to satisfy its business purpose or mission.
另外，如果可视的模型可以用于开始项目的任务或未来的活动，例如方法演进、维护、知识传递，或培训，那么可视的模型就给项目增加了价值。
In addition, a visual model adds value to the project if it can be leveraged to jumpstart a project task or a future activity such as method evolution, maintenance, knowledge transfer, or training.
目的是要说明只有执行事务的进程或线程受到了影响，而总的事务管理器不受影响，并且可用于其它类型的任务。
The intent is to show that only the process or the thread executing the transaction is affected, while the overall transaction manager remains unaffected and available for other kinds of work.
应用推荐