As a clinician, my patient may have multiple identifiers that I need to record, see, and filter by. As a PhenoTips administrator, I would like to configure which external identifiers are supported, or potentially allow arbitrary ones. As a user, I would want to be warned if there's another patient record with the same identifier.
"potentially allow arbitrary ones." I think we would need to support arbitrary ones. Otherwise how many others would we create? and what would they be called?
Sorry, if I recall correctly, there were two things there:
1. Administrators can add (arbitrary) external identifier terms that patient records could include
2. Administrators could potentially allow users to add arbitrary external identifier terms (e.g. a list of the administrator-enabled terms and an "other" option where the user could add their own term category).
Not sure about 2, but I think that's what was meant.