The A-CDM Concept Element ‘Information Sharing’ is the foundation of the A-CDM procedure. It enables the sharing of information and creates a common situational awareness. Information Sharing also enhances the decision making process, because it allows all partners to act based on the shared information. Thus actions can be taken to optimize airside processes as well as the allocation of recourses (infrastructure, equipment, or staff). Information sharing also has a network effect. It leads to a better management of the airspace capacity by ATC and the network manager.