A virtualisation server makes it possible to operate virtual IT systems, integrates these systems into a data centre, and, in so doing, controls their connection to further infrastructure elements such as networks (including storage networks). In the absence of any planning as to how virtualisation servers are to be integrated into existing infrastructure from a technical and organisational point of view, the responsibilities for different areas might not be clearly defined (e.g. for applications, operating systems, and network components). Moreover, the responsibilities for different areas may overlap, or there may be no appropriate rights structure for separating administrative access for the different areas.