[tdwg-guid] Immutability of LSID data
hannu at bioshare.com
Tue Jul 17 11:37:11 CEST 2007
Indeed, I think we need to look closer at handling of the 6th, optional
element in the LSID spec, revision.
If the XML stream returned as data needs to change, that would lead to
issuing a new revision. It is not said clearly that getData should
return data from the latest revision (if omitted), although I'd expect
that. In other words, if the revision has changed, the data returned
does not have to be the same, although it might look like that it has
illegally changed if you omit the revision.
But I must say that I like receiving immutable getData. For instance, if
I use an LSID to identify a taxonomic concept, I expect the description
not to change without notice. Someone many add a new more elaborate
revision, though, which is ok.
Rich wrote (in the other thread):
I believe the answer to Ricardo's example is better addressed in the next
discussion, concerning methods for data versioning. I think the answer to
this issue (persistence of metadata) necessarily must be solved via that
discussion (versioning), so maybe we should discuss the versioning issue
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