I think it is important for catalogers to be able to set themselves. Most copy catalogers may prefer ISBN as default and never change it; but, others might prefer title. It also depends on task. When I am doing database cleanup, I typically use the tcn. And it isn't unusual for me to change the default if I either switch tasks or have records with no OCLC based tcn to overlay.
I think it is important for catalogers to be able to set themselves. Most copy catalogers may prefer ISBN as default and never change it; but, others might prefer title. It also depends on task. When I am doing database cleanup, I typically use the tcn. And it isn't unusual for me to change the default if I either switch tasks or have records with no OCLC based tcn to overlay.