Alan Powell/UK/IBM@IBMGB · 21/12/2010 17:45

I have another issue for the WG.

A number of annotation properties are in effect booleans, but they're declared
as enums of {yes,no}. Why are they not represented as XSD booleans?

I raise this because in various XML-based standards, extra work will have
to be done to convert these values to booleans. For example, XPath and
XQuery provide a number of boolean functions that operate on xs:boolean,
and declare what is called the "effective boolean value" of a
value that is not of type xs:boolean. Unfortunately, the effective boolean
value of "no" is true:

http://www.w3.org/TR/xpath20/#id-ebv

--

Joe Futrelle

Cyberenvironments and Technologies

National Center for Supercomputing Applications
http://www.ncsa.uiuc.edu/People/futrelle

----- Original Message -----

> 1. Current Actions

> 

> 2. QName does not allow empty space

> Change property type of dfdl:escapeSchemeRef, dfdl:hiddenGroupRef
and

> dfdl:prefixeLengthType to QName or empty Space

> 

> 3. DFDL namespace URI

> Should the DFDL namespace URI be changed to

> 
http://www.ogf.org/dfdl/dfdl-1.0

/ (add trailing /)

> 

> 4. Status of OGF DFDL V1 review

> OGF concerns related to confusion over IBM patents. IBM has clarified

> that no patents need to be declared

> 

> 5. AOB

> - Next call Jan 5th 2011.

> 

> 

> Current Actions:

> No Action

> 

> 066 Investigate format for defining test cases

> 25/11:IBM to see if it is possible to publish its test case format.

> 04/12: no update

> ...

> 17/02: IBM is willing in principle to publish the test case format
and

> some of the test cases. May need some time to build a 'compliance

> suite'

> 24/03: No progress

> 03/03: Discussions have been taking place on the subset of tests that

> will be provided.

> 10/03: work is progressing

> 17/03: work is progressing

> 31/03: work is progressing

> 14/04: And XML test case format has been defined and is being tested.

> 21/04. Schema for TDML defined. Need to define how this and the test

> cases will be made public

> 05/05: Work still progressing

> 12/05: Work still progressing

> 02/06: Work still progressing on technical and legal considerations

> ...

> 25/08: Will chase to allow Daffodil access to test cases. The WG

> should define how implementation confirm that they 'conform to DFDL

> v1'

> 01/09: IBM still progressing the legal aspect. Intends to publish
100

> or so tests as soon as it can, ahead of a full compliance suite.

> 08/09: IBM still progressing

> 15/09: IBM still progressing, expect tests to be available within
a

> few weeks

> 22/09: IBM still progressing, expect tests to be available within
a

> few weeks

> 29/09:Test cases are being prepared.

> 06/10: Some test cases should be available next week. Steve would
like

> to be able to show the test case information at OGF 30.

> 13/10: Still progressing

> 10/11: Legal issues cleared, IBM in process of collecting 100 example

> test cases, ideally ones that fit the 'extended conformance' of NCSA

> Daffodil

> 17/11: Work is progressing on verifying the test cases. It should
be

> possible to distribute to the WG in 2 weeks.

> 24/11: About half the test cases have been completed and are being

> reviewed internally.

> 01/12: Test cases should be available shortly

> 08/12: The test cases are in internal IBM review. Probably need a
bit

> of reorganising before publication

> Stephanie gave a brief overview of the format of the test cases.

> 15/12: Ruth joined the call to provide the latest status. The test

> cases have been updated and a draft read.me produced. Although not

> ready for public distribution Ruth will send them to Joe for feedback.

> 

> 111 Daffodil DFDL parser

> 11/08: Bob and Alejandro described the new implementation that they

> have developed. It is a new code base and is not based on the Deffudle

> prototype. It is written in scala and implements approximately 80%
of

> the features in the public comments draft of DFDL V1. Alejandro will

> send a list of the features not implemented.

> We discussed the scenarios that motivated the development which was
to

> extract data from various sources and transform into canonical

> formats.

> Bob offered to make Daffodil available for the WG to assess the

> functionality. IBM WG members will get approval the company to allow

> them to receive Daffodil.

> Bob raised the question that if Daffodil becomes the public

> implementation of DFDL then we will need to work out how that would
be

> funded and managed.

> It would be helpful if IBM test cases were available to Daffodil.
IBM

> will investigate

> 25/08: Alejandro had sent a list of the functions that he has

> implemented and Steve ahd responding indicating the extra functions
he

> thought were essential.

> Since then Alejandro has implemented some of the missing functions,

> such as escape schemes, pre-defined variables, binary decimal numbers,

> etc, and will update his list.

> Bob is planning to make the parser available on the internet to allow

> testing.

> His organisation is being reorganised and he doesn't know what the

> priority of Daffodill will be so it is essential that we move quickly.

> It would help if IBM could indicate its support for Daffodil in some

> semi-formal way.

> 01/09: Alejandro updating Daffodil to include escape schemes,

> unordered sequences and ignoreCase.

> Daffodil being placed under formal source control in anticipation
of

> external release.

> Bob has a start October deadline to create a report on what has been

> done for his sponsors.

> It would be great if we could get Daffodil on the web and have run

> some IBM tests so it could be highlighted at OGF 30 at end October.

> 08/09: Alejandro is marking up Spec draft 42 to indicate which

> features Daffodil implement. Bob expects Daffodil to be available
on

> the web soon.

> 15/09: Alejandro had indicated in the specification which functions

> were implemented in Daffodill. Steve had reviewed and identified which

> function need to be implemented and which could be considered optional

> (see action 099). Alejandro is implementing the missing core

> functions. There was some discussion about the limitations on

> unordered groups. (stop value and expression not supported). It was

> agreed that it should be a schema definition error if

> dfdl:occursCountKind is 'stopValue' on any element within an unordered

> sequence and a floating element.

> 22/09: not discussed

> 29/09: not discussed

> 06/10: Alejandro has left NCSA. Bob is making the case for continuing

> and having a replacement. Bob to agree with Steve what can be said
at

> OGF30.

> 13/10: Bob still progressing project funding and making Daffodil

> publically available.

> 10/11: NCSA internal & sponsor (US National Archive in Washington
DC -

> Electronic Records Administration) reviews passed. NCSA have new

> resource allocated - Joe Futrelle. Bob has started open source

> paperwork. ETA end December.

> 17/11: Joe has started coming up to speed with Daffodil. Bob is

> waiting for signoff from the university to open source the code.

> 24/11: not discussed

> 01/12: Joe is becoming familiar with the code. Waiting for university

> to give permission to make available.

> 08/12: Disclosure process in progressing. Bob has permission to make

> the web page available so hopefully that will be soon.

> The US National Archive have an article on their website about DFDL.

> Unfortunately it is a little out of date.

> 15/12: Hope to get permission to make the source code available within

> days. Web demo page will be available when resources have been

> identified.

> 

> 112 DFDL certification process

> 25/08: Discussed how to certify DFDL implementations. Alan to

> investigate if OGF have a defined process.

> 01/09: In progress, spec needs to state what conformance means, as

> part of this work

> 08/09: Discussed what needs to be said in the spec and agreed that

> details of a conformance test suite should be in another document.

> Alan to draft conformance section.

> 15/09: Alan had look at the conformance sections in XML and Schema

> specifications both of which indicate sections which must be

> implemented. None just say 'execute the test suite'. They talk in

> terms of conformance of document, schema and processors..

> 22/09: no progress

> 22/09: Alan has added short Conformance and Optional Features sections

> to spec which was briefly discussed. Discussed naming for processors

> that don't implement optional features and those that implement all

> features.

> 06/10: Need to decide what/how test cases and certification process

> should occur

> 13/10: no progress

> ...

> 08/12: no progress

> 15/12: no progress

> 

> 123 DFDL tutorial

> 13/10: Draft of first 3 chapters has been written and will be

> distributed to WG

> 10/11: Posted to grid forge here (

> 
http://forge.gridforum.org/sf/go/doc16106?nav=1

), work continuing at

> IBM to define a standard example-based chapter framework and to author

> additional chapters. Contributors welcome!

> 17/11: Steve, Stephanie and Alan had a meeting to discuss the best

> structure for the tutorial and decide which examples to use

> throughout. The meeting raised more questions. Further discussions

> will be held.

> 24:11: The list of topics to be covered in the remaining lessons has

> been produced and a lesson template. Alan will write lesson 4

> 01/12: Alan has started lesson 4 which covers fixed and variable

> fields and arrays.

> 08/12: Alan has almost completed lesson 4. Will send out for review.

> 15/12: First draft of lesson 4 is available for review. Alan to send

> to Bob and Joe.

> 

> 124 DFDL web content on OGF standards pages

> 13/10: no progress

> 10/11: no progress

> 17/11: Alan has looked at the OGF web pages and there aren't many

> standards listed. Some of the links point to very short primers rather

> than the specification

> 

> 08/12: Alan to produce some information to be ready for when spec
is

> approved. Still no word about is it was discussed/approved at OGF

> meeting

> 15/12: no progress

> 

> 129 Press release to publicise DFDL

> Steve is pulling together a press release at IBM. Want to include
as

> many contributors and interested parties as possible.NCSA are keen
to

> be included. Also likely that US National Archive will want to be

> included. Mike has indicated OCO are too.

> 17/11: no progress

> 

> 08/12: Still no response from IBM press office

> 15/12: no progress

> 

> 131 Transformation of dfdl properties to a canonical form

> 08/12: Joe has produced a XSLT to transform a DFDL schema to a

> canonical element form. When tested it should be made available on
the

> WG gidforge site.

> 15/12: Alan tested against test dfdl schema which worked correctly

> (after fixing some errors in the schema)

> 

> 132 Publishing DFDL xsd

> 08/12: Agreed that it should be made available. Suman has started
the

> approval process in IBM

> 15/12: no progress

> 

> 

> Regards

> 

> 

> Alan Powell

> 

> Development - MQSeries, Message Broker, ESB

> IBM Software Group, Application and Integration Middleware Software

> -------------------------------------------------------------------------------------------------------------------------------------------

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> Phone: +44-1962-815073

> e-mail: alan_powell@uk.ibm.com

> 

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From:	Alan Powell/UK/IBM@IBMGB
To:	dfdl-wg@ogf.org
Date:	21/12/2010 17:45
Subject:	[DFDL-WG] DFDL Boolean properties
Sent by:	dfdl-wg-bounces@ogf.org