The paper presents integrated systems analysis (ISA) as a “tool” for modelling and the development of decision support systems (DSS). ISA enhances understanding of the complex relationships between different systems in the form of inputs > transformations > outputs, and also facilitates an understanding of the term sustainable systems for sustainable living through human intervention. Further, the paper presents general and specific models of ISA for sustainable systems and sustainable living.

Complex systems consist of component systems, which over time undergo transformations caused by human activities. On the basis of this approach, it is concluded that sustainable systems for sustainable living may be modelled, managed and maintained by control of the relevant component systems.

The general concept of ISA was developed in 2002 (Soroczynski, 2002). However, the final concept suitable for practical application was developed in December 2016 — January 2017.

The concept of ISA and sustainable systems for sustainable living and human intervention could be considered as a practical application of “sustainable development” (SD).

The concept of SD was introduced in 1987 (WCED, 1987). Many papers were written on that topic, but the practical implementation of this concept has never been defined, in other words, specific strategies for implementation have never been developed.

The paper gives also examples of sustainable systems where human interventions have been used.

Finally, it is considered that on the basis of sustainable systems for sustainable living, it is possible to justify urgent and appropriate action on climate change to the scientific community, the general public and politicians.


Soroczynski, T. 2002, Integrated Systems Analyses and Sustainable Development’,the International Congress of the International Environmental Modelling andSoftware Society, 24–27 June 2002, University of Lugano, by Global Water Partnership:

World Commission on Environment and Development (WCED). 1987. Our Common Future. New York: Oxford University Press.

Tad Soroczynski (PhD)

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