"Systems theory 1.0 revolves around the mereological notion of Whole-Part Theory. In this model, the system equals the whole. The parts are like organs in a body yet are thought of as more modular and static in nature. When you think of systems theory 1.0, think simple input-output machines (like a vending machine). You put a dollar in, and it spits out a snack (assuming it doesn’t get stuck)!"
"Luhmann’s take on systems theory was not conventional. It could be better likened to systems theory 2.0." ⇒ System/Environment (System/Umwelt) ⇒ Social System ⇒ Social System (Soziales System)
is an object system, rather than a language.
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DOT FROM two-level-diagram