Glenda Eoyang
Glenda Eoyang is a pioneer in the applications of complexity science to human and organizational systems, and developed the concept of human systems dynamics (HSD) based on her theoretical and practical research. The model rests on three conditions that influence the path, speed, and outcomes of self-organizing processes in complex adaptive systems. These conditions are necessary and sufficient to create patterns that emerge and can be perceived in all kinds of complex adaptive systems. Depending on the interactions of those conditions, the emergence process and its outcomes can be fast or slow, direct or meandering, and ambiguous  or clear. The same conditions can be intentionally changed to influence the current situation and emerging future patterns of the system. The three conditions are therefore described as the Eoyang CDE Model. Eoyang CDE Model. In 2003, Eoyang founded The Human Systems Dynamics Institute (HSDI) to develop the theory and practice of human systems dynamic. As a not-for-profit organization (501c3) located in the US, the institute invests in research and education around the globe to help individuals and organizations cope with complexity and uncertainty.