Title: The development of an integrated model for assessing sustainability of complex systems

Authors: Gayathri Babarenda Gamage; Carol Boyle; Ron McDowall

Addresses: International Centre for Sustainability Engineering and Research, Civil and Environmental Engineering, University of Auckland, 20 Symonds Street, Auckland, New Zealand ' International Centre for Sustainability Engineering and Research, Civil and Environmental Engineering, University of Auckland, Private Bag 92019, Auckland, 1142, New Zealand ' School of Graduate Management, The University of Waikato, Private Bag 3105, Hamilton, New Zealand

Abstract: Currently, there are numerous indicators (single and composite) for measuring impacts in the three pillars, though current thinking emphasises the need for system thinking rather than the reductionist concept of pillars. Most existing indices/methods measure single aspects of sustainability and the more integrated indicators are aimed at national or global level assessments. A review of existing indicators, methods and models within the context of complex system sustainability showed that no single existing index, method or model was able to assess sustainability of complex systems. Most fail to account for complex system characteristics, such as system dynamics, interconnections and interdependencies of system components, a system's ability to learn and remember, emergence of novel behaviours, co-evolution, etc. This paper presents the methodology used to develop a new model for assessing sustainability of complex systems based on risk.

Keywords: sustainability; complexity; complex systems; adaptive systems; CASs; criteria; methodology; lifecycle assessment; LCA; risk assessment; integrated models; modelling; sustainable development; system dynamics; interconnections; interdependencies; ability to learn; ability to remember; novel behaviours; co-evolution.

DOI: 10.1504/IJSD.2013.056568

International Journal of Sustainable Development, 2013 Vol.16 No.3/4, pp.297 - 309

Received: 08 May 2021
Accepted: 12 May 2021

Published online: 27 Sep 2013 *

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