Enterprise Service Bus, ESB is the product of traditional middleware technology combined with XML, Web service and other technologies，is used to enable accurate, efficient and secure delivery of different messages and information to the enterprise， allows different application services to work together to achieve communication and integration between different services.
![ESB Enterprise Service Bus]( "ESB Enterprise Service Bus")
1. Business database: integrate the data of the underlying access system to form the database of dispatch, customer service and charge
2. Subject database: according to the data of business database, mine and analyze the subject database, and show it to users through the data visualization system
3. Public database: ①ESB management platform database is used to store the content management, authority management, resource management, data dictionary and other functional data of the ESB management platform. ②ESB integrates business database data with ETL tools to form a common database.
Eliminate technical differences and ensure that different application servers work together
Support content-based routing and filtering to transport complex data
Implement service integration centralization and process implementation
With the flexible connection of standard interface, the real strain can be realized