• KSII Transactions on Internet and Information Systems
    Monthly Online Journal (eISSN: 1976-7277)

Formal Trust Assessment with Confidence Probability

Vol. 9, No. 2, February 27, 2015
10.3837/tiis.2015.02.020, Download Paper (Free):


Trust and trustworthiness of web services and organizations is calculated as scalar values. But there is still a certain level of risk for the overall reliability of this value. In this article, we focus on calculating trust values as intervals between upper and lower bounds based on predefined confidence values through an additional confidence probability. This will give us a more realistic approach to the trust assessments between individuals and organizations. We also developed a web-based software tool, TAST (Trust Assessment Software Tool) that collects the web services’ evaluation of different customer groups for similar organizations through the user interface and calculates the trust intervals for predefined and previously selected confidence values. Our model uses a weighted calculation of mean and variances of customer groups in specific periods and analyses the total and incremental trust of different customer groups.


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Cite this article

[IEEE Style]
M. Kutay and T. Ercan, "Formal Trust Assessment with Confidence Probability," KSII Transactions on Internet and Information Systems, vol. 9, no. 2, pp. 830-842, 2015. DOI: 10.3837/tiis.2015.02.020.

[ACM Style]
Mahir Kutay and Tuncay Ercan. 2015. Formal Trust Assessment with Confidence Probability. KSII Transactions on Internet and Information Systems, 9, 2, (2015), 830-842. DOI: 10.3837/tiis.2015.02.020.

[BibTeX Style]
@article{tiis:20740, title="Formal Trust Assessment with Confidence Probability", author="Mahir Kutay and Tuncay Ercan and ", journal="KSII Transactions on Internet and Information Systems", DOI={10.3837/tiis.2015.02.020}, volume={9}, number={2}, year="2015", month={February}, pages={830-842}}