How do you manage a deceased directory?

How do you manage a deceased directory?

We are looking in a way to enhance the deceased information on the directories, but before doing anything, we would like to here from the agencies.

1. How is your agency managing deceased directories?
2. How do you know that a directory is deceased?
3. Do you believe is important to have a deceased date?
4. Do you do any actions after a directory is deceased? Such as, add as a relationship, etc...