Looking from the outside on Drupal

Unfortunately, I could not attend the Drupalcamp in Vienna, instead, a short outline how to classify the structure and dynamics of groups.

The structure

People form groups, when they want to distance themselves from others and create, however natured, a structure. This very simple group description includes two key elements: dissociation and structure.
A group can either be hermetically closed (there is no way out), it can be closed (there is hardly a way in, and hardly a way out) or a group is open (it is easy to belong and easily possible to leave the group).