Karen Coyle wrote:

I need to back up here and say that we are talking about a linked data 
model, not a fixed record, so the idea of "marking" a W as "secondary" 
simply doesn't exist.
Just noting that in my "alternative model", I think this could be done 
after all. If you look at figure 2 in my "additional diagrams" paper, 
the place to record an attribute "secondary" would be the entity marked 
"Part 2 of Aggr. Work". Actually, I believe this may be a good argument 
for having the model like this (although it looks a bit complicated by 
having "Work 2" and "Part 2 of Aggr. Work" together at the same time), 
and not simply having a simpler arrangement like this:
Aggregate work
Part 1: Work 1
Part 2: Work 2

Indeed Work 2 couldn't then be marked "secondary" as it is not secondary "as such". It is secondary only with regard to the part it plays in the aggregate work - and this can be captured, I think, in my model.
Heidrun


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