The request and reply message types are self-explanatory, as they deal with the request and response interaction between client and server applications.
请求和应答消息类型是不言而喻的,因为它们处理客户端和服务器应用程序之间的请求和响应交互。
3
The interaction between actors and the system demonstrated in the original "check in Guest" description can now be used as part of a kiosk application (self-check-in), thus automating the business.