您可能需要一个根本不执行任何工作的活动，例如，当您拥有一个需要某个活动的构造，但没有要执行的任何工作时。
You might need an activity that does nothing at all, such as when you have a construction that requires an activity, but there is no work to be done.
如果您将工作订单构造为一个OO应用程序，这些软件对象将包含所有必需的业务规则，并且理解应该遵循的业务流程。
If you constructed Work Order as an OO application, these software objects would contain all the necessary business rules and would understand the business processes that should be followed.
本文中包括的示例应用程序是所有上述构造的工作示例，该示例应用程序还包括两个环境的部署描述符。
The sample application included with this article is a working example of all the above constructs and includes the deployment descriptors for both environments.
应用推荐