A new instance of the child process is created.

6-20 Modeling and Implementation Guide for Oracle Business Process Management The throw message event can be used to invoke the following types of processes and services: ■ Other BPMN processes ■ BPEL processes ■ SOA service adapters ■ Mediators that are exposed as services Process analysts may add message throw events to a process to define where a process must invoke another process or service. However, process developers are typically responsible for implementing the connectivity with other processes. Additionally, they are typically responsible for creating and implementing the services invoked by the message throw event. For information on how implement message throw events, see Communicating With Other BPMN Processes and Services Using Message Events in the Oracle Fusion Middleware Modeling and Implementation Guide for Oracle Business Process Management. Message throw events are often used to invoke other BPMN processes by calling the message start event of another process. See Section 6.2.3, Introduction to the Message Start Event for more information. Message throw events are also frequently used with message catch events to receive a response from the process or service invoked. However, they are always used asynchronously. After the message throw event sends a message to another process or service, the toke immediately moves to the next flow object of the process. If your process receives a response synchronously, you should use the service task to invoke the process or service. See Section 6.4.1, Introduction to the Service Task for more information.

6.4.7 Introduction to the Message Catch Event

The message catch intermediate event enables you to receive a message from another process or service. Figure 6–24 shows the default notation for the message catch event. Figure 6–24 The Message Catch Event The message catch is represented by two concentric circles with a yellow envelope in the middle. The message catch event is frequently used with the message throw event to communicate with another BPMN process. See Section 6.4.8 for information on how message throw events with message catch event. Note: The send and receive tasks perform similar functionality to the throw and catch message events. However, you cannot use the message throw event to invoke a process that is initiated with a message receive task.