You've loaded this page without map support, so map tools will not work. Open this page with map instead.
When we focus on the connection between elements, we see a connection. Not all of them have same degree of connectivity. Some of them only have one, but other have many connections.
Introduction
System defined by its connection
Explanation
What is connected to what
A network develops
Topology of connectivity
Elements have a degree of connectivity and a position in the network structure.