Service-oriented architecture can offer open standards to integrate inter-enterprise applications, but it cannot fully support complex Internet applications characterized by asynchronous transmission and high reliability. Although traditional message-oriented middleware (MOM), being loosely coupled and asynchronous reliable, is suitable for enterprise integration. Yet it is too unscalable and inflexible to expand into large-scale network environment. In this paper, it firstly presents the communication model of a new service-oriented asynchronous messaging middleware called s-AMM. Then, it des...