Resilience analysis of networked systems-of-systems based on structural and dynamic interdependencies

Silva Vazquez, Andrés and Filippini, Roberto (2012). Resilience analysis of networked systems-of-systems based on structural and dynamic interdependencies. In: "11th International Probabilistic Safety Assessment and Management Conference and the Annual European Safety and Reliability Conference 2012, PSAM11 ESREL 2012 7 , pp. 5899-5908", 25/06/2012 - 29/06/2012, Helsinki, Finlandia. ISBN 978-1-62276-436-5. pp. 5899-5908.

Description

Title: Resilience analysis of networked systems-of-systems based on structural and dynamic interdependencies
Author/s:
  • Silva Vazquez, Andrés
  • Filippini, Roberto
Item Type: Presentation at Congress or Conference (Article)
Event Title: 11th International Probabilistic Safety Assessment and Management Conference and the Annual European Safety and Reliability Conference 2012, PSAM11 ESREL 2012 7 , pp. 5899-5908
Event Dates: 25/06/2012 - 29/06/2012
Event Location: Helsinki, Finlandia
Title of Book: 11th International Probabilistic Safety Assessment and Management Conference and the Annual European Safety and Reliability Conference 2012
Date: 2012
ISBN: 978-1-62276-436-5
Volume: 7
Subjects:
Freetext Keywords: System of systems, criticalities and vulnerabilities, interdependencies, resilience, sistema de sistemas, puntos críticos y vulnerabilidades, interdependencias, resistencia.
Faculty: Facultad de Informática (UPM)
Department: Lenguajes y Sistemas Informáticos e Ingeniería del Software
Creative Commons Licenses: Recognition - No derivative works - Non commercial

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Abstract

Critical infrastructures support everyday activities in modern societies, facilitating the exchange of services and quantities of various nature. Their functioning is the result of the integration of diverse technologies, systems and organizations into a complex network of interconnections. Benefits from networking are accompanied by new threats and risks. In particular, because of the increased interdependency, disturbances and failures may propagate and render unstable the whole infrastructure network. This paper presents a methodology of resilience analysis of networked systems of systems. Resilience generalizes the concept of stability of a system around a state of equilibrium, with respect to a disturbance and its ability of preventing, resisting and recovery. The methodology provides a tool for the analysis of off-equilibrium conditions that may occur in a single system and propagate through the network of dependencies. The analysis is conducted in two stages. The first stage of the analysis is qualitative. It identifies the resilience scenarios, i.e. the sequence of events, triggered by an initial disturbance, which include failures and the system response. The second stage is quantitative. The most critical scenarios can be simulated, for the desired parameter settings, in order to check if they are successfully handled, i.e recovered to nominal conditions, or they end into the network failure. The proposed methodology aims at providing an effective support to resilience-informed design.

More information

Item ID: 19493
DC Identifier: http://oa.upm.es/19493/
OAI Identifier: oai:oa.upm.es:19493
Official URL: http://www.psam11.org/www/fi/papers/index.php
Deposited by: Memoria Investigacion
Deposited on: 04 Oct 2013 15:43
Last Modified: 21 Apr 2016 19:42
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