Towards a framework for trust negotiations in composite web services
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Authors
Thomas, Anitta
Issue Date
2005-11
Type
Dissertation
Language
en
Keywords
Alternative Title
Abstract
Web Services propose a framework for the standardisation of interfaces and
interaction, and for publishing software componen1S as services on the Internet By
using this framework, composite servi<:es that make use of more than one Web service
can be created. Although a composite Web service may provide a unified service to
the service requestor~ it cannot be viewed as a single unified entity when its
trustworthiness is evaluated, since its constituent services may differ in their nonfunctional
attributes.
Based on the context of trust (which includes security, reliability, quality of servi~e.
etc.), information has to be collected from the constituent services of a composite
Web service. Trust negotiation is perfonned to gather infonnation from these
services, with the ultimate goal of establishing trust relationships with them.
In this dissertation~ the Web Services framework is analysed to determine its support
for trust negotiation in any trust context. A trust negotiation procedure is subsequeotly
presemed. which can be applied in a composite as well as an elementary Web service.
Description
Citation
Thomas, Anitta (2005) Towards a framework for trust negotiations in composite web services, University of South Africa, Pretoria, <http://hdl.handle.net/10500/1509>