Harmut Koenitz's definition of complexity
This understanding is at the heart of research on complexity. Accordingly, Chan (2001) defines complexity as resulting “from the interrelationship, inter-action and inter-connectivity of elements within a system and between a system and its environment” (p. 1). One important factor is also the behaviour of such systems over longer periods of time (Mathews et al., 1999), especially when the focus is on systemic change. In