Between a Pilotage District and a Pilot Service, there is a 1 to n relation, i.e. a Pilot Service can only have one Pilotage District attached.
In many cases, we have one Pilot Service that provide a service to multiple District :
different districts with different applicabilities in the same Harbour
different districts in different harbour
In these cases, the pilot service is the same at all levels (same attributes, same ContactDetails, same NoticeTime, etc). Event the Pilot Boarding Place can be the same.
Should we open the relation between Pilotage District and Pilot Service to a n to n relation ?
Between a Pilotage District and a Pilot Service, there is a 1 to n relation, i.e. a Pilot Service can only have one Pilotage District attached.
In many cases, we have one Pilot Service that provide a service to multiple District :
Should we open the relation between Pilotage District and Pilot Service to a n to n relation ?