At present, IT platforms of large or super large enterprises are all chimney-style system architectures. The reason is that enterprises constantly create various systems in order to cater for business development, which in turn leads to redundant functions and unnecessary maintenance investment. Duplicate investment depletes labor forces, financial resources and time. But it is costly to wipe out the interaction and collaboration of chimney-style systems. Major enterprises have to use ESB products to build an enterprise service bus to solve interaction problems between the systems.

However, with the development and iteration of business activities, the business structure of enterprises is changed. To wipe out the interaction and collaboration of chimney-style systems is not good enough, and it is necessary to gradually integrate existing systems to compile a continuous iteration on enterprise strategy, organization and business. It is also indispensable to improving the structure and operation of enterprises to make them achieve their current and future goals; and they will set up systematic standard business processes and intelligent Information platform for related commercial needs and continuous iteration blueprint.

So how to get that point if it is not good enough to wipe out the interaction and collaboration of chimney-style systems? Take a look at the shortcomings when it comes to ESB –centralized service architecture. First，all interactions between service callers and service providers in ESB-centralized architecture must pass through this central point. But ESB has no capability to expand, an eventually retarded itself outcome. 

Second, existing system is a single one based on SOA architecture, which performs well in business process orchestration and application integration. As business develops, system becomes also complicated; the degree of module coupling is high; correlation dependence is complex; so a far-reaching move will be not conducive to business innovation and iteration.

Third, redundant functions in systems are not shared on any service purpose, resulting in one item with codes and failed synchronization data.