The present invention discloses a pluggable service delivery platform for supporting many devices to many services in an e-business application, comprising a device-platform interface, a service-platform interface and a platform kernel section. The service delivery platform of this invention is a flexible and scalable platform to easily “plug” a new device and a new service, and the different parts of the platform are componentized. Any one of the components can be replaced by a 3rd party's products, providing they abide certain open interface like Java Servlet, LDAP, etc.