Dependence Management in Component-Based Distributed Systems
IEEE Concurrency
Supporting automatic configuration of component-based distributed systems
COOTS'99 Proceedings of the 5th conference on USENIX Conference on Object-Oriented Technologies & Systems - Volume 5
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Recent developments in Component technology enable the construction of complex software systems by assembling together off-the-shelf components. However, it is still difficult to develop efficient, reliable, and dynamically configurable component-based systems. Components are often developed by different groups with different methodologies. Unspecified dependencies and behavior lead to unexpected failures. We argue that component-based software systems must maintain explicit representations of inter-component dependence and component requirements. This provides a common ground for supporting fault-tolerance and automating dynamic reconfiguration. In this paper, we present a generic model for reifying dependencies in distributed component systems. We describe our experience deploying our framework in a reflective ORB and discuss the use of this model in a new distributed operating system.