Supporting Dependable Distributed Applications Through a Component-Oriented Middleware-Based Group Service

Abstract. Dependable distributed applications require flexible infrastructure support for controlled redundancy, replication, and recovery of components and services. However, most group-based middleware platforms, which are increasingly being used as implementation environments for such systems, fail to provide adequate flexibility to meet diverse application requirements. This paper presents a group-based middleware platform that aims at maximal flexibility. In particular, flexibility is provided at design time, deployment time and run-time. At design and deployment time, the developer can configure a system by assembling software components shaped to a specific use. Then, at run-time, s/he can dynamically reconfigure the resulting system to adjust it to new circumstances, or can add arbitrary machinery to enable the system to perform self-adaptation. As examples, levels of fault tolerance can be dynamically increased and decreased as desired by adding, removing or replacing r...

• Type: Conference
• Year: 2003
• Where: ICSE
• Authors: Katia B. Saikoski, Geoff Coulson
• Keywords: Deployment Time, Group-based Middleware Platform, ICSE 2003, Software Component, Software Engineering