The b2b architecture needs to support the definition and implementation of mediation services that include transport rebinding , document and message routing , transformation , and additional data handler functions as needed to support integration requirements B2b体系结构需要支持中介服务的定义和实现,中介服务包括传输重新绑定、文档和消息路由、转换以及支持集成需求所必需的附加数据处理程序功能。