> what's the point of marking any of the unitdates with type="inclusive", especially if those
> elements also contain a normal attribute?
The simple presence of a normal attribute doesn't tell you whether the range is inclusive or bulk, which may be pretty important. With this:
<unitdate type="inclusive" normal="1950/1980">
I know that ALL items in the folder fall in that range, whereas with this:
<unitdate type="bulk" normal="1950/1980">
I know that MOST items in the folder are in that range. However, with this:
I can't be sure which it is. So from the perspective of precision, it's important. On the other hand, I agree that using inclusive for something like 2010-07-29 is a bit redundant :)