ECDIS is about to become a commercial reality. However, the full poten
tial of the system is not likely to be realised until Time Varying Obj
ects (TVOs) like tides, currents etc., are incorporated to represent t
he constantly changing conditions that meet the navigators every day.
The relevant standards need to be urgently developed to prevent uncoor
dinated development of incompatible systems. hh coordination of the ef
forts of several Working Groups of IHO is required to provide a viable
solution.