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Responsibility Modeling for the Sociotechnical Risk Analysis of Coalitions of Systems

Responsibility Modeling for the Sociotechnical Risk Analysis of Coalitions of Systems,Computing Research Repository,David Greenwood,Ian Sommerville

Responsibility Modeling for the Sociotechnical Risk Analysis of Coalitions of Systems  
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Society is challenging systems engineers by demanding ever more complex and integrated systems. With the rise of cloud computing and systems-of-systems (including cyber-physical systems) we are entering an era where mission critical services and applications will be dependent upon 'coalitions-of-systems'. Coalitions-of-systems (CoS) are a class of system similar to systems-of-systems but they differ in that they interact to further overlapping self-interests rather than an overarching mission. Assessing the sociotechnical risks associated with CoS is an open research question of societal importance as existing risk analysis techniques typically focus on the technical aspects of systems and ignore risks associated with coalition partners reneging on responsibilities or leaving the coalition. We demonstrate that a responsibility modeling based risk analysis approach enables the identification of sociotechnical risks associated with CoS. The approach identifies hazards and associated risks that may arise when relying upon a coalition of human/organizational/technical agents to provision a service or application. Through a case study of a proposed cloud IT infrastructure migration we show how the technique identifies vulnerabilities that may arise because of human, organizational or technical agents failing to discharge responsibilities.
Journal: Computing Research Repository - CORR , vol. abs/1104.2, 2011
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