Abstract
Complex decision contexts involving multiple (and often competing) policy objectives are common in both strategic and operational decisions encountered in engineering projects or programmes. The need to consider multiple objectives and to address the concerns of diverse stakeholders raises particular difficulties in applying sustainable development principles to defining and choosing an optimum project, process, product, policy or solution. This paper derives some fundamental characteristics of appropriate support for sustainable development decisions. Using these characteristics, three methodologies, which have been proposed as support tools for making strategic decisions and assessing policy choices for their contributions towards sustainable development, are reviewed critically with reference to their theoretical basis and informed by case studies of engineering applications. Recommendations are made to support best practice and to develop more effective support for such decisions in future.
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