Relationship between _publ_author.id and _audit_author.id

[James Hester]

Dear Core DMG,

Related to my previous email today on author roles is the question of the
relationship between "publ_author" and "audit_author".  Recall that
publ_author lists authors on a publication that is based on the CIF file,
and is used by the journals. audit_author lists authors associated with the
production of the data. There are 4 possibilities that I see:

(1) Audit author is the root source of author identifiers: all authors in
publ_author also appear in audit_author

Objection: some authors on the publication may be associated with work that
is outside the crystallographic experiment and so not properly included in
audit_author

(2) Publ_author is the root source of author identifiers: all authors in
audit_author also appear in publ_author

Objection: Some contributions recorded in audit_author may not rise to the
levels required for ethical inclusion in an author list

(3) A third "author" list is created that becomes the canonical author
list, from which authors in audit_author and publ_author are drawn

Objection: duplication of information

(4) audit_author and publ_author are formally independent lists, but can
link authors if required either via a new dataname pointing into the other
list, or indirectly via e.g. OrCID identifiers.

My preference is for (4) as it recognises both the different underlying
scopes of the two author categories but also allows common authors to be
identified, and is minimally disruptive for existing software.

If we had our time again, (3) would be the correct approach and we would
not duplicate address information in publ_author and audit_author. However,
making that change now would be very disruptive.

Please comment.

James.
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