Identification number and Positive identification

Identification number noun - A numeral or string of numerals that is used for identification.

Positive identification and identification number are semantically related. In some cases you can use "Positive identification" instead a noun phrase "Identification number".

Positive identification noun - Evidence proving that you are who you say you are; evidence establishing that you are among the group of people already known to the system; recognition by the system leads to acceptance.

Identification number and positive identification are semantically related. Sometimes you can replace phrase "Identification number" with "Positive identification", this phrases are similar.