A system is an entity which maintains its existence
through the mutual interaction of its parts.
The key emphasis here is one of "mutual interaction," in that something is occurring between the parts, over time, which maintains the system. A system is different than a heap or a collection, mostly.
Video: Interview with David Gurteen at the ING Business Academy
This is a short video interview with David Gurteen by Mireille Jansma of the ING Business Academy in Amsterdam in November 2011 where she asks him what he thinks of their "Challenging Minds" programme having just experienced one of the sessions
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