This report has been produced by a team of pure ECDIS users and instructors who over the years have written many books, publications and articles on ECDIS featuring most of the 38 manufacturers. It has been produced in response to the overwhelming requests from an international client base of over 250 shipping companies that want to understand more about the complex issues relating to the ever developing ECDIS navigation options required on an estimated 50,000+ international trading ships. The core issue of the complexity centres around the perceived varying standards of both the different ECDIS systems, and the associated training standards for the safe and effective transition from paper to ECDIS.