A Formal Apparatus for Modeling Trust in Computing Environments - Denis Trček

Content:

THIS IS AN EARLY VERSION OF PAPER PUBLISHED IN
Mathematical and Computer Modelling 49 (2009) 226–233, Elsevier
(this early version is made available due to copyright reasons)


A Formal Apparatus for Modeling Trust in Computing Environments

Denis Trček
Faculty of computer and information science
Laboratory for e-media
Tržaška cesta 25, 1000 Ljubljana, Slovenia
Tel.: +386 1 4768 918 / Fax: +386 1 4264 647
E-mail: denis.trcek@fri.uni-lj.si

Abstract
Recent research in computer systems security has evolved into trust issues, which are now becoming an important topic. Majority of approaches for trust modeling addressed trust by actually focusing on security, and some of them addressed also trust as such. This paper presents a formal apparatus that concentrates on trust as such. It is flexible enough to accommodate the driving factors behind trust and consequently different trust-focused methodologies and technologies. The basic goal of work presented in this paper is definition of qualitative trust modeling methodology for trust management in contemporary computing environments that efficiently complements existing quantitative methodologies. Further, an open conceptual model for trust management is presented that accommodates various qualitative and quantitative trust management methodologies. This model has also been implemented in web services environment, and it is discussed in this paper as well.

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