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Information 2017, 8(2), 46; doi:10.3390/info8020046

A Framework for Systematic Refinement of Trustworthiness Requirements

paluno—The Ruhr Institute for Software Technology, University of Duisburg-Essen, Duisburg 47057, Germany
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Academic Editors: Steven Furnell, Sokratis K. Katsikas and Costas Lambrinoudakis
Received: 16 December 2016 / Revised: 13 April 2017 / Accepted: 15 April 2017 / Published: 20 April 2017
(This article belongs to the Special Issue Trust, Privacy and Security in Digital Business)
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Abstract

The trustworthiness of systems that support complex collaborative business processes is an emergent property. In order to address users’ trust concerns, trustworthiness requirements of software systems must be elicited and satisfied. The aim of this paper is to address the gap that exists between end-users’ trust concerns and the lack of implementation of proper trustworthiness requirements. New technologies like cloud computing bring new capabilities for hosting and offering complex collaborative business operations. However, these advances might bring undesirable side effects, e.g., introducing new vulnerabilities and threats caused by collaboration and data exchange over the Internet. Hence, users become more concerned about trust. Trust is subjective; trustworthiness requirements for addressing trust concerns are difficult to elicit, especially if there are different parties involved in the business process. We propose a user-centered trustworthiness requirement analysis and modeling framework. We integrate the subjective trust concerns into goal models and embed them into business process models as objective trustworthiness requirements. Business process model and notation is extended to enable modeling trustworthiness requirements. This paper focuses on the challenges of elicitation, refinement and modeling trustworthiness requirements. An application example from the healthcare domain is used to demonstrate our approach. View Full-Text
Keywords: trust; trustworthiness requirements; requirements engineering; goal modeling; business process modeling trust; trustworthiness requirements; requirements engineering; goal modeling; business process modeling
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This is an open access article distributed under the Creative Commons Attribution License which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. (CC BY 4.0).

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MDPI and ACS Style

Mohammadi, N.G.; Heisel, M. A Framework for Systematic Refinement of Trustworthiness Requirements. Information 2017, 8, 46.

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