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[pls] clarification on assertion 50 (was Re: [pls] minor updates on the implementation report plan)

From: Kazuyuki Ashimura <ashimura@w3.org>
Date: Sat, 12 Jul 2008 01:52:53 +0900
Message-ID: <48778FE5.8010503@w3.org>
To: www-voice@w3.org

Dear www-voice,

We the W3C Voice Browser Working Group had got implementation reports
from Loquendo [1] and France Telecom [2] for the Pronunciation Lexicon
Specification (PLS) Version 1.0 Candidate Recommendation (CR) [3].

While analyzing those implementation reports, the group found that
there was ambiguity within both the PLS CR [3] and the Implementation
Report Plan (IRP) [4].  So we have decided to add clarification to
both the specification and the IRP.

Please see below for the minor modifications caused by the
clarification on the IRP [4].

1. The abstract of the Assertion 50 is modified to better handle
   "xml:base" attribute.

2. The content of the test file for Assertion 63 is modified on the
   test result to address the assertion properly.

3. The pls-ir-20080711.zip archive is also regenerated to include
   above modified files.

And please refer the updated version of the IRP at:
http://www.w3.org/Voice/2007/pls-irp/
(same location as the previous one)

The group very much welcome implementation reports based on your
experiences with the PLS specification.  Please send your reports to
<www-voice@w3.org> in the format described in the IRP [4].


------------------------------
Note on above modification #1
------------------------------
Both the section 4.1 of the PLS CR [5] and the assertion #50 of the
IRP [4] say:
[[
The OPTIONAL xml:base attribute establishes a base URI for the PLS
document as defined in XML Base [XML-BASE].
]]

However, the specified base URI is never used within current PLS 1.0
though some smart processor might use that information with "content"
attribute of optional <meta> element.  So it's difficult to test a PLS
processor truly establishes a base or actually does something with the
resultant URI.

Therefore we thought it should be covered by XML specifications, e.g.,
XML Base [6], and have decided to add clarification to the spec and
the IRP like:
[[
PLS documents MAY include the "xml:base" attribute as defined in [XML
Base].
]]

The group will add the clarification to the spec as well when it is
published as the Proposed Recommendation.

[1] Loquendo's report: 
http://lists.w3.org/Archives/Public/www-voice/2008AprJun/0006.html
[2] France Telecom's report: 
http://lists.w3.org/Archives/Public/www-voice/2008AprJun/0010.html
[3] PLS CR: http://www.w3.org/TR/2007/CR-pronunciation-lexicon-20071212/
[4] PLS IRP: http://www.w3.org/Voice/2007/pls-irp/
[5] PLS CR section 4.1: 
http://www.w3.org/TR/2007/CR-pronunciation-lexicon-20071212/#S4.1
[6] XML-BASE: http://www.w3.org/TR/2001/REC-xmlbase-20010627/

Sincerely,

Kazuyuki


Kazuyuki Ashimura wrote:
>
> Dear www-voice,
>
> We are very sorry but on 18 December 2007 we the W3C Voice Browser
> Working Group added a few minor modifications to the Implementation
> Report Plan [1] of the Pronunciation Lexicon Specification (PLS)
> Version 1.0 Candidate Recommendation as follows:
>
> 1. The title of the document [1] is modified to "Implementation
>   Report Plan".
>
> 2. The content of the test file for Assertion 79 [2] is modified to
>   check the assertion properly.
>
> 3. The pls-ir-20071212.zip [3] archive is also regenerated to include
>   above modified files.
>
> Please refer the updated version of the Implementation Report Plan,
> the test and the ZIP archive.
>
> Note:
> There is no change in the Pronunciation Lexicon Specification (PLS)
> Version 1.0 Candidate Recommendation [4] itself.
>
> [1] http://www.w3.org/Voice/2007/pls-irp/#intro
> [2] http://www.w3.org/Voice/2007/pls-irp/79/79-.pls
> [3] http://www.w3.org/Voice/2007/pls-irp/pls-ir-20071212.zip
> [4] http://www.w3.org/TR/2007/CR-pronunciation-lexicon-20071212/
>
> Sincerely,
>
> Kazuyuki
>
>
>
> James Larson wrote:
>>
>> The World Wide Web Consortium (W3C) has published the Candidate 
>> Recommendation of "Pronunciation Lexicon specification (PLS) Version 
>> 1.0". W3C publishes a technical report as a Candidate Recommendation 
>> to indicate that the document is believed to be stable, and to 
>> encourage implementation by the developer community.  The PLS 
>> candidate Recommendation document is located at 
>> http://www.w3.org/TR/pronunciation-lexicon/
>>
>> The Pronunciation Lexicon Specification (PLS) is designed to enable 
>> interoperable specification of pronunciation information for both 
>> speech recognition and speech synthesis engines. The language is 
>> intended to be easy to use by developers while supporting the 
>> accurate specification of pronunciation information for international 
>> use.  The language allows one or more pronunciations for a word or 
>> phrase to be specified using a standard pronunciation alphabet or if 
>> necessary using vendor specific alphabets. Pronunciations are grouped 
>> together into a PLS document which may be referenced from other 
>> markup languages, such as the Speech Recognition Grammar 
>> Specification [SRGS] and the Speech Synthesis Markup Language 
>> [SSML].   Pronunciation lexicons are not only useful for voice 
>> browsers; they have also proven effective mechanisms to support 
>> accessibility for persons with disabilities as well as greater 
>> usability for all users. They are used to good effect in screen 
>> readers and user agents supporting multimodal interfaces.
>>
>> Jim Larson and Scott McGlashan
>> Co-chairs, W3C Voice Browser Working Group
>>
>
>


-- 
Kazuyuki Ashimura / W3C Multimodal & Voice Activity Lead
mailto: ashimura@w3.org
voice: +81.466.49.1170 / fax: +81.466.49.1171
Received on Friday, 11 July 2008 16:51:11 GMT

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