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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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