Trustworthiness technologies and systems for service-oriented environments are re-shaping the world of e-business. By building trust relationships and establishing trustworthiness and reputation ratings, service providers and organizations will improve customer service, business value and consumer confidence, and provide quality assessment and assurance for the customer in the networked economy. Trust and Reputation for Service-Oriented Environments is a complete tutorial on how to provide business intelligence for sellers, service providers, and manufacturers. In an accessible style, the authors show how the capture of consumer requirements and end-user opinions gives modern businesses the competitive advantage. Trust and Reputation for Service-Oriented Environments: Clarifies trust and security concepts, and defines trust, trust relationships, trustworthiness, reputation, reputation relationships, and trust and reputation models. Details trust and reputation ontologies and databases. Explores the dynamic nature of trust and reputation and how to manage them efficiently. Provides methodologies for trustworthiness measurement, reputation assessment and trustworthiness prediction. Evaluates current trust and reputation systems as employed by companies such as Yahoo, eBay, BizRate, Epinion and Amazon, etc. Gives ample illustrations and real world examples to help validate trust and reputation concepts and methodologies. Offers an accompanying website with lecture notes and PowerPoint slides. This text will give senior undergraduate and masters level students of IT, IS, computer science, computer engineering and business disciplines a full understanding of the concepts and issues involved in trust and reputation. Business providers, consumer watch-dogs and government organizations will find it an invaluable reference to establishing and maintaining trust in open, distributed, anonymous service-oriented network environments.

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 plays an important role in our daily life, both implicitly and explicitly. Our decisions are based on our estimation of how trustworthy a person is or how reliable a service is. Consequently, there has been a rise in trust systems that model human trust in a virtual or computing environment. These trust systems or trust models help to bridge the gap of human feelings and intuition in an unfamiliar environment. Trust models collect information regarding the participants' activities and give a trust rating based on observed activities. In a network environment, a plethora of network devices are in constant communication as data packets are transported from source to destination. The autonomous nature of network environments and devices make it difficult to monitor the services and devices from a central point. Security mechanisms, such as IPSec, exist in routing protocols to safeguard network packets travelling in a network, however routing devices that act as service providers are not protected by malicious attacks. For example, an attack aimed at the routing architecture of a network involves a routing device advertising itself as another routing device in order to divert network traffic away from its intended destination. This dissertation investigates trust models in network environments as a possible approach to predict and ultimately eliminate at- tacks on routing devices. To accomplish this, the role of routing devices as service providers and requesters must be stated explicitly. Activities on a routing device must be collected and used to determine the trust level of the routing device. This dissertation presents the TSONE - Trust in Service-Oriented Net- work Environment - model. The model incorporates traditional service- oriented architecture (SOA) principles to define a service-oriented network environment. Services in this environment are then defined. Furthermore the characteristics of this environment are adapted from SOA principles. An approach is defined to collect and measure activities on routing devices. This is later used to determine the trust level of the routing device. Finally, a pro- to type illustrates that incorporation of trust models is a possible option in assessing availability and reliability of routing devices.

This book constitutes the proceedings of the 7th Joint International Conference on Service-Oriented Computing, ICSOC-ServiceWave 2009, held in Stockholm, Sweden, in November 2009. The 54 contributions to this volume, consisting of 37 full papers, 8 short papers and 9 demonstration papers, were carefully reviewed and selected from 228 submissions. The papers are arranged in topical sections on composition, discovery, design principles, customization and adaptation, negotiation, agreements and compliance, selection, platforms and infrastructures, security, modeling and design, validation and verification, reputation and ranking, and service management. This volume launches the new subline of Lecture Notes in Computer Science, entitled LNCS Services Science.

This volume features the refereed proceedings of the 4th International Conference on Trust and Privacy in Digital Business. The 28 papers were all carefully reviewed. They cover privacy and identity management, security and risk management, security requirements and development, privacy enhancing technologies and privacy management, access control models, trust and reputation, security protocols, and security and privacy in mobile environments.

This book constitutes the refereed proceedings of the 8th International Conference, ICSOC 2010, held in San Francisco, CA, USA, in December 2010. The 33 revised full papers and three full industry papers, presented together with 18 short papers, three PhD symposium posters and four regular posters, were carefully reviewed and selected from 238 submissions. The papers are organized in topical sections on Service and Business Process Modeling; Service Management; Quality of Service; Service Science and Design; Service Development and Run-time Management; High-level Description Languages; Service Level Agreements; Service Engineering Methodologies; Service Security, Privacy, and Trust; Business Service Modeling; Formal Methods; and Service Applications.

This book constitutes the refereed proceedings of the 9th International Conference on Service-Oriented Computing, ICSOC 2011, held in Paphos, Cyprus, in December 2011. The 54 revised papers presented were carefully reviewed and selected from 184 submissions. The papers are organized in topical sections on business process modeling, quality of service, formal methods, XaaS computing, service discovery, service security and trust, service runtime infrastructures and service applications.

This book constitutes the refereed proceedings of the Third International Conference on Trust and Privacy in Digital Business, TrustBus 2006, held in conjunction with DEXA 2006. The book presents 24 carefully reviewed, revised full papers, organized in topical sections on privacy and identity management, security and risk management, security requirements and development, privacy enhancing technologies and privacy management, access control models, trust and reputation, security protocols and more.

The book compiles technologies for enhancing and provisioning security, privacy and trust in cloud systems based on Quality of Service requirements. It is a timely contribution to a field that is gaining considerable research interest, momentum, and provides a comprehensive coverage of technologies related to cloud security, privacy and trust. In particular, the book includes - Cloud security fundamentals and related technologies to-date, with a comprehensive coverage of evolution, current landscape, and future roadmap. - A smooth organization with introductory, advanced and specialist content, i.e. from basics of security, privacy and trust in cloud systems, to advanced cartographic techniques, case studies covering both social and technological aspects, and advanced platforms. - Case studies written by professionals and/or industrial researchers. - Inclusion of a section on Cloud security and eGovernance tutorial that can be used for knowledge transfer and teaching purpose. - Identification of open research issues to help practitioners and researchers. The book is a timely topic for readers, including practicing engineers and academics, in the domains related to the engineering, science, and art of building networks and networked applications. Specifically, upon reading this book, audiences will perceive the following benefits: 1. Learn the state-of-the-art in research and development on cloud security, privacy and trust. 2. Obtain a future roadmap by learning open research issues. 3. Gather the background knowledge to tackle key problems, whose solutions will enhance the evolution of next-generation secure cloud systems.

The Future Internet envisions a move toward widespread use of services as a way of networked interaction. However, while the technologies for developing and deploying services are well established, methods for ensuring trust and security are fewer and less mature. Lack of trust and confidence in composed services and in their constituent parts is reckoned to be one of the significant factors limiting widespread uptake of service-oriented computing. This state-of-the-art survey illustrates the results of the Aniketos – Secure and Trustworthy Composite Services – project (funded under the EU 7th Research Framework Programme). The papers included in the book describe the solutions developed during the 4-year project to establish and maintain trustworthiness and secure behavior in a constantly changing service environment. They provide service developers and providers with a secure service development framework that includes methods, tools, and security services supporting the design-time creation and run-time composition of secure dynamic services, where both the services and the threats are evolving. The 16 chapters are organized in the following thematic sections: state of the art of secure and trustworthy composite services; the Aniketos platform; design-time support framework; run-time support framework; and case studies and evaluation.