Minutes of the SSC Call 24th March 2005

[<stephen_green@seventhproject.co.uk>]

Minutes of the UBL Software Sub-Committee Teleconference Call 24th March
2005
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Attendance:

Stephen Green
Anne Hendry
David Kruppke
Sylvia Webb


Reports from TC and SC's

1. 10 or more extra documents may be considered for UBL 1.1 (including
those already noted in
   TC Pacific minutes plus a possible new addition from Tax XML - a
self-billed debit note -
   SW)

2. Atlantic calls had been on hold for a little while and the mail lists
relatively quiet

3. Website links to the SC pages had been fixed

4. The Pacific call TC group are planning to produce recommendations of
model content changes 
   for UBL 1.1 for TC review ahead of actually adding these to the
model. They also plan to
   produce a set of prototype 1.1 modelling spreadsheets with example
changes
   so that SSC could take these further (in response to SSC's
comment/request last week)

Report from DK regarding Schema generation phase 1

   DK would start work on Tuesday in view of the planned 31st March
target date.

   SG stated that with regard to CTD20 and the concerns that it might
affect
   type names with arguably reduced backwards compatibility, DK should
   keep primarily to what we are sure about for this phase and we should
await
   a decision on this from NDR but might be able, too, to produce
prototype
   Schemas demonstrating the effects of keeping CTD20. 

   **  DK would use the following model artifacts for Schema generation
with Edifix:
       - imports of aligned version of UBL 1.0 model spreadsheets apart
from CCT and UDT
       - exception of the UBLAmount specialized datatype, held specially
in Edifix since
         it could not yet be automated form the existing spreadsheets
         (SG noted that he had already commented that SDT's for 1.1
might need special
         consideration on a case by case basis with regard both to their
modeling and 
         Schema generation)

   Action: DK to start work on Schema generation without CTD20
   Action: DK, at his discretion, to prototype Schema generation with
CTD20 too 

Schema Design with regard to imports and XSD derivation

   SG and DK had agreed by emails over the past week and in line with
Tony Coates' comments
   in the meeting last week that the best design we could offer and
closest to our 
   understanding
   of the agreed UBL 1.1 Naming and Design Rules while keeping proven
backwards compatibility 
   was that demonstrated in a set of prototype Schemas which SG had sent
to the list on 23rd 
   March.
   
   Agreed: that this design would be recommended to the TC and NDR Team
although it would 
           require some changes to the 1.1 NDR (with likely impact on
other groups using the 
           same rules).

   The discussions to date are all found in the SSC list postings over
the past two or three 
   weeks including previous meeting minutes, culminating in the 23rd
March prototype.

   Action: SG to include this in the minutes and to email Jon and then
the TC regarding this 
           design and resulting recommended changes to the NDR (and see
action item below)

Schedule

   It was pointed out and discussed that there would now be two sets of
Schemas for NDR and 
   the TC to consider:
     - Schemas from DK resulting from phase 1 of the Schema generation
(possibly including
        a separate set of prototype Schemas for rule CTD20)
     - prototype Schemas from SG resulting from SSC discussions and
agreement

   NDR decisions will be needed by SSC for the following:
     - initial feedback from SG and DK about rules e.g. GNR10, GNR11,
ATN2, CTD7-11, CTD20 
       and DOC8 and DOC9
     - review of Schemas from phase 1 Schema generation
     - VER8 and VER9 - use of imports and derivation in a minor version

   ** Agreed:  the SSC schedule for Schema generation work for 1.1
depends on the above 
               NDR/TC decisions
   ** Agreed:  the target date for actual work by DK to begin is the end
of the first week in 
               May in order to meet the subsequent target date of June
1st (note: the plenary 
              is the second week in May)


   *******
   NOTE:  This means a necessity to receive NDR decisions by around ***
April 22nd *** 
           in order to allow time for clarification where necessary, etc

   *******


   ** Agreed:  that without a prompt decision from NDR Team/TC regarding
the NDRules the 
               final target date for UBL 1.1 would be in jeapordy and
further DK/EF work 
               after this month might be held up  


   Action:   SG to minute this and include in the emails to Jon and then
the NDR Team the 
             urgent note that without a prompt decision from NDR Team/TC
regarding the 
             NDRules the final target date for UBL 1.1 would be in
jeapordy and that this 
             meant urgent discussions by the TC/NDR Team team over the
next two weeks with a 
             set of decisions by April 22nd

   ** Agreed:  There was some possibility that a fallback position would
be to use the design
               agreed by SSC for minor versions (redeclarations without
imports for all types 
               except datatypes) if no minor version decision was
reached by NDR Team/TC in 
               time for the final UBL 1.1 target date (the contingency
for failing to receive 
               decisions on other rules might be to assume they should
be ignored if they 
               would be understood to possibly break backwards
compatibility)
               This contingency would allow 1.1 work to continue without
NDR feedback by the 
               end of April but MD/SW had emphasised the strong wish to
await clear 
               NDR/TC-agreed instructions before proceeding with
development.