[DFDL-WG] New internal draft of Core document

Wed Apr 25 08:04:13 CDT 2007

Hi Folks,

I have taken this version below and posted a version 018 of the draft
core spec. My changes are in the section "What is DFDL" I have drafted
this section and moved it into the Introduction at the top. I have also
added a section on "What DFDL is not" and I have made a start on the
v1.0 scope. All of the changes are fairly rough and I suspect that the
Introduction section is now too long and could do with some editing.

Thanks,

Martin

  _____  

From: dfdl-wg-bounces at ogf.org [mailto:dfdl-wg-bounces at ogf.org] On Behalf
Of Mike Beckerle
Sent: Thursday, April 19, 2007 7:16 PM
To: dfdl-wg at ogf.org
Subject: [DFDL-WG] New internal draft of Core document

I've posted version 017 of the internal draft core spec. to the
gridforge site. Here is the URL: 

https://forge.gridforum.org/sf/docman/do/viewDocument/projects.dfdl-wg/d
ocman.root.current_0/doc14407?_message=1177035246251 

I'd like to ask people to review it with an eye towards whether the
semantics part is clear enough or at least getting there. 

The major accomplishment in this draft was folding together some of
Geoff's material on defaults/nulls/missing/optional (especially the
input flow-charts) into the parse-strategies technique so as to
illustrate that the parse-strategies framework I had put in was capable
of handling this complexity. 

This spec is really now getting to the limit of what I can do in
MS-Word. I.e., there's too much stuff in here that really needs to be
developed as code in a programming language to insure there are no
errors in it. Assuming the semantics framework is now ok, the next work
is really cranking out actual parse and length strategy and conversion
definitions, and this is going to be very error prone unless done in
some type-checked and executable form. 

...mikeb 

Mike Beckerle
STSM, Architect, Scalable Computing
IBM Software Group
Information Platform and Solutions
Westborough, MA 01581
direct: voice and FAX 508-599-7148
assistant: Pam Riordan   
                 priordan at us.ibm.com 
                 508-599-7046

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