Component-Based Dynamic QoS Adaptations in Distributed Real-Time and Embedded Systems

Large scale distributed real time and embedded (DRE) applications are complex entities that are often composed of different subsystems and have stringent Quality of Service (QoS) requirements. These subsystems are often developed separately by different developers increasingly using commercial off-the shelf (COTS) middleware. Subsequently, these subsystems need to be integrated, configured to communicate with each other, and distributed. However, there is currently no standard way of supporting these requirements in existing COTS middleware. While recently emerging component-based middleware provides standardized support for packaging, assembling, and deploying, there is no standard way to provision QoS required by the DRE applications. We have previously introduced a QoS encapsulation model, qoskets, as part of our QuO middleware framework that can dynamically adapt to resource constraints. In this paper we introduce implementing these QoS behaviors as components that can be assembled...

• Type: Conference
• Year: 2004
• Where: COOPIS
• Authors: Praveen Kaushik Sharma, Joseph P. Loyall, George T. Heineman, Richard E. Schantz, Richard Shapiro, Gary Duzan
• Keywords: COOPIS 2004, Information Management, Middleware, QoS Encapsulation Model, QoS Provisioning Components