The iSDG model enables policy makers and planning officials at all levels of governance to understand the interconnectedness of policies designed to achieve the SDGs and test their likely impacts before adopting them.

An integrated analysis is required to successfully address complex development issues that balance social, economic, and environmental development. By bringing together the three dimensions of sustainable development into one framework, the iSDG model enables broad, cross-sector and long-term analyses of the impacts of alternative policies.

The model simulates the fundamental trends for SDGs until 2030 under a business-as-usual scenario, and supports the analysis of relevant alternative scenarios. It also traces the trends beyond the SDGs’ time span to 2050. The iSDG model is especially useful both in the early stages of policy design, to support scenario exploration, and in its advanced stage, when specific interventions designed for various sectors can be jointly simulated to assess their combined effect and the emerging synergies.

The model is structured to allow for rapid expansion to support the analysis of other country-specific development issues beyond the SDGs. Its user-friendly desktop interface allows various stakeholders to use it, and a portable version is also being developed.

The iSDG model was constructed starting from the well-vetted, time tested and validated Threshold21 (T21)® model, covers all the 17 Goals including 78 SDG indicators, and supports a better understanding of the interconnections of the goals and targets, in order to develop synergetic strategies to achieve them.