GAT supports a separate audit for Groups. The purpose of this audit is two-fold. It will report on the ownership, membership and access rights for each group, along with details like aliases, managers etc. It can also be used to detect and report new or changed groups. These are important security features. (See video here.)
You can search and filter by a range of criteria
You can manage the groups directly
Clicking on the group name will take you directly to the Google Group management console.
Groups with a large number of members will have the members hidden by default
Clicking on the number will show the full list of members.
The GAT Groups audit also shows some important sharing and collaboration information concerning the group and the collective membership of the group.
In this part of the audit there are six column titles, moving the mouse cursor over each column title pops up a tool-tip explaining the information in the column.
The following are extended explanations
%Docs – The percentage of total docs in the domain used by members of this group. (Note used is more inclusive than ‘owned’, representing all the documents they have access to.)
%In – The percentage of total ‘shared in’ documents in the domain, shared into members of this group.
%Out – The percentage of total shared-out documents in this domain shared out by members of this group
#Group Docs – Shared documents created by members of this group (private only documents are excluded).
#Shared to Group – The number of documents owned by members of the group that have been shared explicitly to the group (i.e. to the group name). This gives a good idea of how engaged the members of the group are with sharing with the rest of the group in total.
#Shared to Members – The number of documents owned by members of the group share to at least one other member of the group.
These last 6 figures give important information about the behaviour of the group, as a group, with respect to Google Drive. They can be key indicators for group level collaboration.