Definition of the term "Artifact"?

The Glossary of Evidence Explained, 3rd ed. (revised) does not provide a definition of "artifact". Various passages in the book seem to hint at a definition, but there doesn't seem to be anything explicit that covers the situations that I commonly encounter.

I read over the post: Granted; there are certain documents that will not, or cannot, be issued a second time. If one has these on hand, then these must be considered artifacts e.g. a driver's licence.


If I inherit a document, there are instances In which I could try to order it myself. Until I actually order the document, I often cannot determine whether the document will be exactly the same as what I already have on hand. It could now be re-issued as an image copy, an extraction, or even a transcription. It could also, in some circumstances, contain more or less information. Frankly; I could have the same situation, even if I tried to re-order a document that I had previously ordered.

So; would it not be easier and "safer" to simply classify and cite inherited materials as artifacts?