GXquery can be used in two ways: Basic and Advanced mode.
In the most simple mode, only one administrator user is required. The administrator user can perform the tasks of creating metadatas and managing the users of the only repository of metadatas and users available.
To learn more about this mode, read GXquery Basic administration.
This administration mode makes it possible to have n repositories with their metadatas and users, independently from the other repositories. That is to say, for example, that a repository contains information of the Sales area, another repository represents the Products area, another one belongs to the Human Resources area, and so on. Instead of areas in a company, repositories may represent entire companies which are independent from each other.
To learn more about this mode, read GXquery Advanced administration.