Something broadly similar to the 'Status', 'Priority', and 'Category', select lists in the Drupal issue tracking system (example).
Schema.org has the rather unsatisfactory actionStatus property, with a measly four ActionStatusType values to pick from. I can get around that by categorising each of our longer list of values as one of those four (or none, if necessary). That's actually a good general solution for extending the spec.
So actionStatus is a select list which applies to entities (terms) in that bundle (vocabulary).
Member for
3 weeks 3 daysKaty Swain
Thinking…
Not sure how to go with this now. Have implemented as taxonomy, then thought that was too heavy and they should just be select lists of plain text values. But that will mean losing the mapping back from our arbitrary list of status values to the four ActionStatusType values which are actually quite useful for filtering the view(s).
Also didn't do a priority field, as I didn't think it was useful, but now I think it is.