Tiziana Margaria

Ingolf Krüger

Athman Bouguettaya

6th International Conference, Sydney, Australia, December 1-5, 2008, Proceedings

Service-Oriented Computing - ICSOC 2008

Sherif Sakr

Liang Zhao

Anna Liu

In practice, the design and architecture of a cloud varies among cloud providers. We present a generic evaluation framework for the performance, availability and reliability characteristics of various cloud platforms. We describe a generic benchmark architecture for cloud databases, specifically NoSQL database as a service. It measures the performance of replication delay and monetary cost. Service Level Agreements (SLA) represent the contract which captures the agreed upon guarantees between a service provider and its customers. The specifications of existing service level agreements (SLA) for cloud services are not designed to flexibly handle even relatively straightforward performance and technical requirements of consumer applications. We present a novel approach for SLA-based management of cloud-hosted databases from the consumer perspective and an end-to-end framework for consumer-centric SLA management of cloud-hosted databases. The framework facilitates adaptive and dynamic provisioning of the database tier of the software applications based on application-defined policies for satisfying their own SLA performance requirements, avoiding the cost of any SLA violation and controlling the monetary cost of the allocated computing resources. In this framework, the SLA of the consumer applications are declaratively defined in terms of goals which are subjected to a number of constraints that are specific to the application requirements. The framework continuously monitors the application-defined SLA and automatically triggers the execution of necessary corrective actions (scaling out/in the database tier) when required. The framework is database platform-agnostic, uses virtualization-based database replication mechanisms and requires zero source code changes of the cloud-hosted software applications.

Cloud Data Management

Zaki Malik

Web services and service oriented environments are key enablers for the migration of entertainment, business, sociability, science and health-care from the physical world to the virtual world. The result of this on-going migration is a new place very much different from the physical world, one where interconnected services interact with human users, sensors and embedded devices. Yet for this vision to become reality, trust needs to be addressed as members of the global e-society r- ularly today deal with the question whether they can trust other, unknown parties. Trust is a vital component of internet-based interactions and service-oriented en- ronment, but all too often it is assumed to be an implicit property that exists in the background rather than being an explicit property that is well-de ned and quant- able. While providing trust is challenging in existing computing systems, providing trust in service oriented environments is much more complex due to the dynamic and adaptable nature of these environment which are often large scale and across domains. To date the problem of trust for service oriented environments has been largely unexplored. This book represents the rst comprehensivecoverageof the principles,methods and systems for trust management and evaluation in service oriented environments.

Trust Management for Service-Oriented Environments

Xumin Liu

Salman Akram

Change Management for Semantic Web Services provides a thorough analysis of change management in the lifecycle of services for databases and workflows, including changes that occur at the individual service level or at the aggregate composed service level. This book describes taxonomy of changes that are expected in semantic service oriented environments. The process of change management consists of detecting, propagating, and reacting to changes. Change Management for Semantic Web Services is one of the first books that discuss the development of a theoretical foundation for managing changes in atomic and long-term composed services. This book also proposes a formal model and a change language to provide sufficient semantics for change management; it devises an automatic process to react to, verify, and optimize changes. Case studies and examples are presented in the last section of this book.

Change Management for Semantic Web Services

Brahim Medjahed

Service Composition for the Semantic Web presents an in-depth analysis of aspects related to semantic-enabled Web service modeling and composition. It also covers challenges and solutions to composing Web services on the semantic Web, and proposing a semantic framework for organizing and describing Web services. Service Composition for the Semantic Web describes composability and matching models to check whether semantic Web services can be combined together to avoid unexpected failures at run time, and a set of algorithms that automatically generate detailed descriptions of composite services from high-level specifications of composition requests. The book includes case studies in the areas of digital government and bioinformatics.

Service Composition for the Semantic Web

Manfred Hauswirth

Ling Liu

This book constitutes the proceedings of the 12th International Conference on Web Information Systems Engineering, WISE 2011, held in Sydney, Australia, in October 2011. The 17 revised full papers and 11 revised short papers presented together with 7 demo papers were carefully reviewed and selected from 96 submissions. The papers contained in these proceedings address challenging issues in software services, Web application engineering and modelling, Web search, social networks, Web semantics, and information retrieval and extraction.

12th International Conference, Sydney, Australia, October 13-14, 2011, Proceedings

Web Information System Engineering -- WISE 2011

Athman Bouguettaya

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