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- W2189055292 abstract "Service based software (SBS) systems are software systems consisting of services based on the service oriented architecture (SOA). Each service in SBS systems provides partial functionalities and collaborates with other services as workflows to provide the functionalities required by the systems. These services may be developed and/or owned by different entities and physically distributed across the Internet. Compared with traditional software system components which are usually specifically designed for the target systems and bound tightly, the interfaces of services and their communication protocols are standardized, which allow SBS systems to support late binding, provide better interoperability, better flexibility in dynamic business logics, and higher fault tolerance. The development process of SBS systems can be divided to three major phases: 1) SBS specification, 2) service discovery and matching, and 3) service composition and workflow execution. This dissertation focuses on the second phase, and presents a privacy preserving service discovery and ranking approach for multiple user QoS requirements. This approach helps service providers to register services and service users to search services through public, but untrusted service directories with the protection of their privacy against the service directories. The service directories can match the registered services with service requests, but do not learn any information about them. Our approach also enforces access control on services during the matching process, which prevents unauthorized users from discovering services. After the service directories match a set of services that satisfy the service users’ functionality requirements, the service discovery approach presented in this dissertation further considers service users’ QoS requirements in two steps. First, this approach optimizes services’ QoS by making tradeoff among various QoS aspects with users’ QoS requirements and preferences. Second, this approach ranks services based on how" @default.
- W2189055292 created "2016-06-24" @default.
- W2189055292 creator A5067379327 @default.
- W2189055292 date "2011-01-01" @default.
- W2189055292 modified "2023-09-24" @default.
- W2189055292 title "Privacy Preserving Service Discovery and Ranking For Multiple User QoS Requirements in Service-Based Software Systems" @default.
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