能为用户提供相同的应用启动和消息接收方法。

Provide a common way for users to launch applications and receive messages.

youdao

也就是说，发送方能够确认其意愿中的消息接收方的身份，而接收方能确认消息发送方的身份。

That is, a sender can confirm the identity of the recipient who the sender wants to send a message to, and a recipient can confirm the identity of the sender from whom a message was received.

youdao

在大多数情况下，inflow从传输侦听器开始，到消息接收方处结束，而outflow能以不同的方式开始，大多数情况下都在传输发送方处结束。

In most cases inflow starts from a transport listener and ends with MessageReceiver, while outflow could start in a different manner and will most of the time end with transport sender.

youdao