pran, on 2018-January-11, 11:15, said:
But I do not really understand that this situation can occur at all, it appears to me as evidence of an unforgivable incompetent system designer?
I have had and used the Bridgemate scoring system since 1991, our routine is that North manages the terminal and enter:
1: The board number (before cards are removed from the board) - possible message: "This board is not scheduled at this table for this round"
2: The contract (immediately following the closing pass) - no message is ever given
3: The opening lead (immediately as faced) - no message is ever given
4: The number of tricks won - The terminal displays the calculated score and a request for confirmation by East/West.
If the opening lead is incorrectly entered (yes, that happens) nobody really worries - it has no legal effect.
But if a player approaches me and claims that the incorrect declarer has been registered and his claim is not corroborated by the registered opening lead then he will have to provide more evidence of such an error than when the opening lead is correctly registered.
Most players are aware of this and tend to be careful with their registrations, also of opening leads.
WHat has occurred to me is that an OLOOT (for instance, accepted) w©ould be 'misconstrued' by the computer to be from the 'wrong hand'.