You could be thinking about single sign-on, where the same UID/PWD combination is used on many different applications/ systems.

However, IMO, this term is as inaccurate as "preboarding" that used by airlines. If it's single signon, I should only have to signon once, not multiple times (each app requires you to signon)

Note re: Preboarding. Preboarding implies things that happen before boarding begins, but with airlines, preboarding is when people start boarding.

>I agree with you as far as uniqueness and so on. I have an app that for many (20+) years has been set to use only a password. So the password is unique for each user. The user name is non-essential. I want to change this so I have to explain to the customers. I thought I heard the term 'Single-something' and 'Double-something'; so I would explain that we are changing from 'Single..' to 'Double...' But apparently I am mistaken and such terms do not exist. So I will simply have to describe.
>Thank you.