ECDIS is about to become a commercial reality. However, the full potential of the system is not likely to be realised until Time Varying Objects (TVOs) like tides, currents etc., are incorporated to represent the constantly changing conditions that meet the navigators every day. The relevant standards need to be urgently developed to prevent uncoordinated development of incompatible systems. A coordination of the efforts of several Working Groups of IHO is required to provide a viable solution
