Using distributed component model for active service deployment

This paper presents a novel active architecture for building and deploying network services: HABA, hyper active components architecture. At the architectural level, HABA defines an active node whose functionalities are divided into the node operating system, the execution environment, and the active applications. At the implementation level, HABA is a component-based platform where new components could be added and deployed, in order to modify network node behavior dynamically. Applications can communicate across multi-tiered heterogeneous environments, and across Internet and intranet structures. Interoperability with ANTS is achieved by "composition". At the deployment level, HABA uses an active node approach, and offers a parallel controlled deployment mode and a sequential by request mode. In terms of security, HABA offers different security levels according to service profiles. Authentication of deployed code, and protection of nodes, is achieved by the deployment of certificates on the nodes.