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Subject: Minutes of Atlantic UBL TC call 1 March 2006
MINUTES OF ATLANTIC UBL TC MEETING
16H00 - 18H00 UTC WEDNESDAY 1 MARCH 2006
ATTENDANCE
Jon Bosak (chair)
Peter Borresen
Mikkel Brun
Tony Coates
Betty Harvey
Bryan Rassmussen
Zarella Rendon
Sylvia Webb
STANDING ITEMS
Additions to the calendar:
http://ibiblio.org/bosak/ubl/calendar.htm
None.
Subcommittee and team updates to Pacific call status reports
None.
Review of Pacific call
No comments.
Schedule review
http://lists.oasis-open.org/archives/ubl/200602/msg00107.html
(Regarding new line items 5 and 13 in supp0228)
JB: (Line 5) What code list additions need to be made to
NDR?
TonyC: MartyB made some changes to the code list schemas,
and these may not have been reflected in the NDR. There
probably is an outstanding item here.
ACTION: JB to contact MartyB regarding possible code list
contributions to the NDR.
JB: (Line 13) It's been decided to copy the genericode
schema into the support package for code lists (TonyC:
Yes). What further needs to be done to gc 0.3?
TonyC: Added metadata and a change to allow empty code lists
having only metadata. Will deliver the week of 3 April.
ACTION ITEM REVIEW
ACTION: MB to verify that dk can rent a conference room Thu 25
May.
PB: The Northern European UBL group will fund this. We can
assume that it's being taken care of.
ACTION: PB to discuss room logistics for 26 May with MavisC.
ACTION: JB to check on possible Sun office in Brussels.
JB: In progress, but the office is not in Brussels but
rather Zaventem, and it's probable that they too will be
closed on 26 May.
AGREED to hold the work session 26 May at a rented room in
Brussels rather than trying for Zaventem.
ACTION: JB to ask Mark Leitch to attend the TC call 3/29 and to
verify that he will be at the meeting in Brussels.
ML (participating briefly): Funding not clear.
ACTION: JB to contact funding sources in UK.
SW: Will BH be in Brussels? (BH: No.)
AGREED that SW will input the revised spreadsheets in
Brussels to ensure correctness, then BH will generate the
revised schemas the week of 29 May. (We note that SW will
be on vacation that week.)
ACTION: BR to send us an updated proposal including a more
extensive use of schematron. TC to review and
be prepared to discuss in the Atlantic meeting 1 March 2006.
BR: Did send the revised proposal:
http://lists.oasis-open.org/archives/ubl/200602/msg00099.html
The group discussed the NVDL possibility that was raised in
this week's Pacific call and followed up in email to the ubl
list from GKH and BR. If we grant the requirement to allow
ad hoc extensions identified by dk, then we have two
alternatives: XSD ANY (as proposed by BR) and NVDL (as
proposed by GKH). The group was polled informally with the
following results.
- XSD ANY (the current proposal): strict validation will
force a search for a schema associated with the namespace
of the ANY section, but this presents a problem if the
schema corresponding to that namespace is not available
from a central location. Furthermore, assigning a
namespace to the ANY section prevents reuse of elements
in the parent schema. If the namespace is omitted, it
becomes difficult to distinguish items in an instance
that derive from the main schema and items allowed by
ANY. We are generally agreed that ANY is a hack.
- NVDL: exists because of the weakness in xsd; technically
is probably the best solution. The big worry here is
about the availability of implementations and the lack of
NVDL experience among implementers.
- In any case, we will have to specify processing rules for
extensions (e.g., if you don't recognize the namespace,
go down to the next level; or, if you don't recognize the
namespace, skip that entire subtree). Given that such a
rule has been established and you want to deal with an
extension, ANY is a processing step, whereas NVDL is a
preprocessing step.
ACTION: TC to study BR's revised proposal (see above) and
comment on the proposal; TC to think about NVDL and share
comments with the group.
OTHER BUSINESS
JB: Note that there will be no Pacific TC calls for the next
three weeks. There will be Atlantic TC calls for all three
weeks, but they with be formally considered "work sessions"
rather the TC meetings.
Jon Bosak
Chair, OASIS UBL TC
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