I'm writing an article series on NAT, and would like for it to be as vendor agnostic as possible. To include the terminology I use. To that end...

What are the standard / industry accepted / vendor neutral terms for what Cisco calls Policy NAT and Twice NAT?

To ensure we are on the same page, here is how I am defining these two:

Policy NAT - Making a translation decision based upon the source and destination of a packet (as opposed to just the source)

Twice NAT - Translating both sides (source and destination) of the packet as it crosses a NAT device.

A Policy NAT may just translate the Source (making it not a Twice NAT).

(The answer may actually be Policy NAT and Twice NAT, if so, confirmation of the fact would be swell)