A Survey of Trust in Workflows and Relevant Contexts

Abstract

With the fast-growing Internet technology, several service-based interactions are prevalent and appear in several forms such as e-commerce, content provider, Virtual Organizations, Peer-to-Peer, Web Service, Grids, Cloud Computing, and individual interactions. This demands for an effective mechanism to establish trust among participants in a highlevel abstract way, capturing relevant factors ranging on Service Level Agreement, security policies, requirements, regulations, constraints, Quality of Service, reputation, and recommendation. Trust is platform-independent and flexible to be seamlessly integrated into heterogeneous domains and interoperate with different security solutions in distributed environments. Establishing trust in a service workflow leads to the willingness of services to participate. Coordinating service workflows without trust consideration may pose higher risks, possibly results in poor performance, additional vulnerabilities, or failures. Although trust in service workflows and relevant contexts has been studied for a past decade, the standard development is still immature. Nowadays, trust approaches to service workflows comprise a large area of research where one can hardly classify into a comprehensive survey. This survey examines and explores the role of trust in service workflows and their contexts from a wide variety of literatures. Various mechanisms, architecture, techniques, standards, and frameworks are explained along the way with discussions. Working trust definition and classification are newly provided and supported with examples.

A Framework for Trustworthy Web Service Composition and Optimization

“…However, in the open runtime environment, cheating and malicious services are often mixed with honest and good ones. How to distinguish the untrustworthy services from the trustworthy ones, and then use the trustworthy services to create value-added composite service becomes a critical research area [8]. The trust evaluation for both atomic services and composite service is always needed to be considered because of the open and dynamic circumstance of Web service.…”

Automatic trust calculation for service‐oriented systems

“…It is difficult to ensure the accuracy because of different abilities and knowledge of humans. Viriyasitavat and Martin [12] also discovered that lacking of a unified way to formalise trust prevented automation in trust-related processes from realisation. 2.…”

“…It is difficult to ensure the accuracy because of different abilities and knowledge of humans. Viriyasitavat and Martin [12] also discovered that lacking of a unified way to formalise trust prevented automation in trust‐related processes from realisation. To aggregate data from other consumers, the similarity between consumers was employed to weight other consumers’ data in [9–11]. The similarity is calculated by distance functions and a poor function may lead to bad aggregation results.…”

An Automatic Trust Calculation Based on the Improved Kalman Filter Detection Algorithm

“…In addition, collecting feedback from humans becomes harder in large-scale service-oriented applications. The authors in [12] surveyed techniques of trust in service workflows and relevant contexts. According to their review, they also discovered that lacking of a unified way to formalize trust prevented automation in trust-related processes from realization.…”