Web services on-demand is a subset of the on-demandmessage which covers a wide spectrum.
On - demand Web服务On - demand是涵盖宽谱系的On - demand消息的一部分。
2
In order to send a message from one corner of the Internet to another, the protocols of communication demand that the whole message be copied along the way several times.
为了将信息从互联网中的某个角落传输到另外一边，通信协议令信息在传输过程中经过了数次的复制。
3
Message Broker is an option when Web services support is not critical, and quality-of-service requirements demand the use of mature middleware.
当 Web 服务支持不是非常关键，并且服务质量需求要求使用成熟的中间件时，可以选择使用 Message Broker。