WG11 minutes from Stockholm

[Dave Loffredo]

Hi, 

Below are the minutes from Stockholm.  Thanks to everyone 
for all of your hard work and contributions!

					- Dave


============================================================
TC184/SC4/WG11 Stockholm Minutes
2002-06-10 to 2002-06-14

Opening Plenary Mon 10:30-Noon	
ATTENDEES 
Lothar Klein		DE	lothar.klein at lksoft.com
Marcus Maier		DE	maier at pdtec.de
Takashi Inouye		JP	inouye at fqs.fujitsu.com
Masaru Suzuki		JP	masaru.suzuki at umisys.co.jp
Jochen Haenisch		NO	jochen.haenisch at epmtech.jotne.com
Peter Bergström		SE	peter.bergstrom at eurostep.com
Lars Johanson		SE	lars.johanson at iuf.se
Dave Loffredo		US	loffredo at steptools.com
Heidi Preston		US	hpreston at ebmail.gdeb.com


PROGRESS AND STATUS OF WG11 PROJECTS

Part 11 Ammendment / Edition 2 - status 30.99
	Reporting - Jochen Haenisch

	Must finish issue resolution, produce FDIS document before
	October.  Prior to that, must circulate the new normative
	annex for both WG11 and P-member review (4-week). Schedule 
	for when and how this will happen is shown below:

	June 28th - Deliver the short-to-long annex to secretariat
		for 4 week concurrent P-member and WG11 review.
	July - Editorial work on main document while the annex is
		out for review.
	August - Resolve issues from review of annex
	August 31st - FDIS Draft ready for checklists
	September 15th - Internal and PL checklists complete
	September 25th - Convenor review complete
	September 30th - At Geneva for FDIS circulation

	Since Myrtle Beach, editorial work has been done to merge the
	original 1994 text with the TCs and the DAM text.  This work
	includes the non-controversial issue resolutions.

	The project met Wednesday and Thursday to finish issue
	resolutions.  Resolution of remaining issues and review of
	previously resolved ones led to:

	- No language identifier; note on use of schema version
	  identifier instead
	- Definitions to be added/improved (e.g. complex data type
	  instance)
	- New informative annex for checking the validity of the data
	  type of an instance in a given schema (in addition to
	  annexes B and C).

	The new short-to-long annex will be a normative annex that
	converts shortform P11e2 schemas to one longform P11e1 schema
 	Changes to initial draft discussed at meeting.  An updated 
	draft will be put together and sent out for 4 week P-member
	and WG11 review as above.  The project will also put in a
	request that definitions on shortform and longform be added 
	to Edition 2 of ISO 10303-1.

	The basic points of the algorithm in the new annex are: 

	- Extended ENUMERATIONs and SELECTs collapse into
 	  Edition 1 representations 
 	     - based_on relationships convert to TYPE structures 
	       with WHERE-rules

	- SUBTYPE_CONSTRAINTS
             - expressions incorporated into SUPERTYPEs
 	     - TOTAL_OVERs converted to RULEs

	- ABSTRACT ENTITYs convert to ABSTRACT SUPERTYPEs
	- RENAMED attributes convert to DERIVEd attributes
	
	Need help from all groups using Edition 2 to verify that
	output of annex algorithm is compatible with the existing
	integrated resource/AP definitions.

	Finally, all SEDS issues have been closed that were 
	listed open as of 2002-05-03 (most were handled in the 
	P11 tc2 document)


Part 12  - No report, published 1997-07-15

Part 14 - status 30.99
	Signed off for DIS ballot on 2002-04-02 and delivered to
	secretariat.   Ballot completion date not known.

Part 21e2 - No report, published 2002-01-15
Part 22	- No report, published 1998-12-15
Part 23	- No report, published 2000-12-01
Part 24 - No report, published 2001-12-15

Part 25 - status 30.20
	Signed off for TS ballot on 2002-03-15 and delivered to
	secretariat.   Ballot completion date not known.

Part 26 - No report, cancelled
Part 27 - No report, published 2000-11-15

Part 28 - status 30.92
	Reporting - Heidi Preston

	P28 Edition One
	Comments received from Pascal Huau identified a flaw in the
	way E1 handles collections. Prior to the meeting, a proposed
	resolution was sent to the exploder, but when discussed at
	Stockholm, the proposed resolution was rejected.

	Markus Maier will send his reasons for rejecting the proposal
	out to the exploder.  Few participants were present in the E1
	discussions, and more feedback and further suggestions will be
	sought via the exploder.

	ISO has sent back the E1 proofs for corrections. The plan is
	to come up with an accepatble resolution and submit it to ISO
	as changes to the proof.

	Part 28 / Part 25 Interaction
	Between meetings there was a discussion on the exploder about
	re-combining Part 25 and Part 28.  Dave Price presented an
	overview of Part 25 and how it relates to Part 28.  
	 - Consensus was that there are potential overlaps that may
	   deserve attention in the future but P25 is currently not
	   intended for data exchange.  
	 - Parts 25 and 28 should remain independent

	P28 Edition 2 Draft Review
 	- Commenced with a rough working draft.

	- Spent significant time restructuring the high level document
	  architecture.  Most of the content review spent on Clause 6
	  defining the binding.

	- Meeting resulted with a structurally stable draft which will
	  require independent rework prior to distribution expected
	  to be distributed to exploder at the end of the June.

 	- Still refining appearance of configuration language

	Open Issues
 	- Wrapper elements and the xsi:nil attribute- debate over
	  whether they should exist in the default mapping or in the
	  configuration language.  To be discussed over the exploder.


Part 29 - status 30.60, No report, last movement 1999-11-12

Part 31 - No report, published 1994-12-31 status 90.93
Part 32 - No report, published 2000-01-04
Part 33 - No report, cancelled 
Part 34 - No report, published 2001-02-01

Part 35 - status 30.95
	Reporting - Lothar Klein
	Implementation tests between meetings raised a few more issues.
	These are just error code corrections.

	The plan is to integrate the corrections, circulate the
	updated document for a 4-wk wg11 review before forwarding
	for TS.


NEW BUSINESS 

ITEM 1
The only near-term implementation path for EXPRESS Edition 2 is the
draft E2 shortform to E1 longform annex.  WG11 has been directed to
start NWIs to update 20-series to handle Edition 2 constructs.

However, a survey of WG11 indicates no funding for this work.  Two
people at the meeting were willing to self-fund some work, but there
have been no other response to previous calls.

WG11 issued a request to P-members at the plenary to provide more
participation before this work can continue.


SC4 BUSINESS MEETING 
With the disbanding of WG10, SC4 has transferred the responsibility
for UML interfaces with OMG to WG11

SC4 has requested that WG3, WG11, and WG12 all nominate experts to
work alongside the IAI to harmonize the IFC2x platform.  Since he is a
member of both WG11 and IAI, Thomas Liebich is the natural choice for
this harmonization.


2-YEAR LACK OF PROGRESS
WARNING REPORT
Project Num	Status 	Time at status 	Slippage (in months)

10303-0011 ed2 	30.99 	30.4 		6.4
10303-0011 tc2 	30.95 	27.2 		3.2
10303-0029 	30.60 	30.4 		6.4


7-YEAR SLIPPAGE
REPORT
Project Num 	ISO Start Date 	Status 	Time at status 	Slippage (in months)
10303-0011 DAM 			40.40 	6.8
10303-0011 ed2 	1994-10-31	30.99 	30.4 		6.8
10303-0011 tc2 			30.95 	27.2
10303-0025 			30.20	2.3