Adding record in detail table or create a new master table for it

For speed and maintanance sake (don't mind my English) (is it Englis?)
Should I append a record in a detail table and refresh the master
or should I create a new master table for the detail (comprendo?)

TNX,

Marcel van Eijkel
v952...@si.hhs.nl
eij...@hetnet.nl
IT-Student
Holland