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http://www.openoffice.org/issues/show_bug.cgi?id=91562
------- Additional comments from [EMAIL PROTECTED] Fri Aug 8 10:40:26 +0000
2008 -------
*Reusing Content*
One of the main use-cases of meta-data is for re-using content. Lets explain
this a little bit and I will take a dictionary-style example where we define the
meaning of a new word using meta-data. [Actual use cases are likely to be well
beyond this very simple/trivial example.]
Now, we have the first document where we have this new word and the meta-data.
However, I might i.) copy this new word to a new document or ii.) within the
same document, and I wish that it's meta-data is preserved:
i.) the meta-data should be copied to the new document
ii.) the 2nd copy should point to the existing meta-data
Lets take a more realistic example: we may have a diagnostic study performed,
and the lab reports the results. These results may contain a lot of meta-data
(like Lab-specific parameters, machine type, test conditions, ...). Now, I
receive these results and wish to write a new document which contains these
results. I will copy/paste the desired data and I would welcome that the
meta-data is copied as well. Basically, copying the meta-data, too, has 2 roles:
i.) it will flank, and therefore identify the specific data
in the 2nd document (so it can be automatically detected in this
document, too)
ii.) it conveys additional information, not present in the visible text
Now, lets go back to the Actions in the previous e-mail. I still might
misunderstand this feature (or meta-data more globally), but this is *my
meaning* of meta-data (or the way I find it most useful).
Action 1: CUT
Nothing points to the meta-data, but after paste, the text-object should point
again at this meta-data (either left in place, or copied to the new document IF
it was pasted to a new document)
Action 2: COPY and PASTE as new paragraph
As we can't predict which paragraph is important (will be re-used for its
content/meta-data), both paragraphs should continue to point to the same
meta-data. Especially, because manually copying data won't ensure that the right
paragraph is copied. [IF the data was handled automatically, the parser could
detect the paragraph that still has the meta-data attached to it, but this is
not true for manual copy/paste.]
Action 3: CUT and PASTE (meta-data is preserved)
Action 4: COPY and PASTE in new document
The meta-data stream should be copied to the new document and the paragraph
shall point to this new copy.
As I said, the content might traverse different documents:
PROVIDER 1 => generates meta-data [document 1] => COPIED to document 2
[rather then CUT/PASTE, the COPY/PASTE is more likely] =>
COPIED to document 3 => ...
All users will benefit from the meta-data, so all objects originating from the
original object should reference the meta-data (or a copy of the meta-data). As
I said, my expertise in meta-data is very limited, but this is what I understand
from meta-data and how I imagine it being most useful.
When nothing points to the meta-data anymore, then the best way to handle this
is to delete the meta-data (should be undoable as long as the Undo is allowed;
should be deleted completely after the undo is not possible anymore).
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