At 2009-04-13 21:47 +0100, Anthony B. Coates (DES) wrote:
>Apologies that I've been so slow moving on this. I mentioned previous
>that UN/CEFACT ICG had request some additions to the genericode Schema.
>In particular, in the 1.0 Schema, a code list set can contain
>
> * code lists
> * references to code lists
> * references to other code lists sets
>
>UN/CEFACT ICG would like us to add
>
> * code list sets (not just references)
>
>To be complete, I think we could also add
>
> * column sets (external definitions of columns and keys)
> * references to column sets
>
>I have a prototype Schema that supports this, and am working on a set of
>examples to demonstrate the different ways code list sets can be
>constructed. While doing that, I have found a bug in the genericode 1.0
>Schema.
We are allowed to issue errata.
>In the 1.0 Schema, a code list reference contains
>
> * a mandatory canonical URI
> * an optional canonical version URI
> * any number of location URIs
>
>A code list set reference contains exactly the same.
>
>However, a column set reference contains
>
> * a mandatory canonical version URI
> * any number of location URIs
>
>This is an oversight on my part. When I made an update to the content
>model for references, I apparently fixed only the code lists and code list
>sets, not the column sets.
>
>I think we should fix this, but that would make the next release of
>genericode backwards incompatible. It would be a 2.0 release instead of a
>1.1 release. I suspect it would only be "technically" backwards
>incompatible, because I have no evidence that anyone is using column set
>references at present
Then we should be safe issuing a 1.0 erratum that fixes the inconsistency.
Then adding the new code sets and column sets would be a version 1.1.
>(but I would certainly like to hear from anyone who
>is). The purpose of this e-mail is to let you all know about this issue,
>and to get your feedback about fixing it in the next release of genericode.
I'll check with Mary.
. . . . . . . . . . . Ken
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