UML distilled: applying the standard object modeling language
UML distilled: applying the standard object modeling language
A Management Interface for Distributed Fault Tolerance CORBA Services
SMW '98 Proceedings of the IEEE Third International Workshop on Systems Management
AQuA: An Adaptive Architecture that Provides Dependable Distributed Objects
SRDS '98 Proceedings of the The 17th IEEE Symposium on Reliable Distributed Systems
On Evaluating the Performability of Degradable Computing Systems
IEEE Transactions on Computers
QuO's runtime support for quality of service in distributed objects
Middleware '98 Proceedings of the IFIP International Conference on Distributed Systems Platforms and Open Distributed Processing
Towards middleware for fault-tolerance in distributed real-time and embedded systems
DAIS'08 Proceedings of the 8th IFIP WG 6.1 international conference on Distributed applications and interoperable systems
The role of agreements in IT management software
Architecting Dependable Systems III
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We present the Quality-of-Service Query Service (QQS), a CORBA service which provides Quality-of-Service- related 'decisions' for the configuration and parameterization of CORBA applications. Applications and services query QQS for those QoS-related decisions, and input data into QQS, so that evaluators have the necessary information to execute their decision-making algorithms. QQS consists of a database, a registration, naming and dynamic-loading facility for evaluators, and a registration and dynamic-loading facility for data collectors. The data model underlying the database is a QoS-oriented data model specially designed for QQS, such that a maximum amount of relevant queries and evaluators fit into QQS. This paper describes the motivation, design, implementation and use of the QoS query service.