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APN
2009
Springer
14 years 1 months ago
Monotonicity in Service Orchestrations
Web Service orchestrations are compositions of different Web Services to form a new service. The services called during the orchestration guarantee a given Quality of Service (QoS...
Anne Bouillard, Sidney Rosario, Albert Benveniste,...
ICWS
2009
IEEE
14 years 3 months ago
Flexible Probabilistic QoS Management of Transaction Based Web Services Orchestrations
—In this paper we extend our previous work on soft probabilistic contracts for QoS management, from the particular case of “response time”, to general QoS parameters. Our stu...
Sidney Rosario, Albert Benveniste, Claude Jard
ATVA
2009
Springer
99views Hardware» more  ATVA 2009»
13 years 10 months ago
CLAN: A Tool for Contract Analysis and Conflict Discovery
Abstract. As Service-Oriented Architectures are more widely adopted, it becomes more important to adopt measures for ensuring that the services satisfy functional and non-functiona...
Stephen Fenech, Gordon J. Pace, Gerardo Schneider
TSC
2008
144views more  TSC 2008»
13 years 6 months ago
Probabilistic QoS and Soft Contracts for Transaction-Based Web Services Orchestrations
Service level agreements (SLAs), or contracts, have an important role in web services. These contracts define the obligations and rights between the provider of a web service and i...
Sidney Rosario, Albert Benveniste, Stefan Haar, Cl...
HICSS
2007
IEEE
162views Biometrics» more  HICSS 2007»
14 years 29 days ago
Value-at-Risk in IT Services Contracts
As information systems (IS) and technology solutions become increasingly service-driven, managers are faced with the task of choosing parameters such as service-levels, pricing, a...
Robert J. Kauffman, Ryan Sougstad