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Re: Datatypes comments

From: Martin Bryan <mtbryan@sgml.u-net.com>
Date: Sun, 14 May 2000 08:01:08 +0100
Message-ID: <04ca01bfbdb4$3275b100$2ccc66c3@sgml>
To: <petsa@us.ibm.com>
Cc: <www-xml-schema-comments@w3.org>
Ashok

> You have sent a number of notes with comments on the Datatypes part
> of the XML Schema specification.  We appreciate your input.  I believe
>  I have responded to all your concerns but would like to ask you formally
> whether you feel your concerns have been addressed and the issues
> you raised can be closed.

The vast majority of my concerns have been answered, for which I thank you. There are still some relatively minor ones, such as the sentence that reads 'To accommodate year values outside the range from 0 to 9999, additional digits can be added to the left of this representation and an preceding "-" is allowed.' This really needs the 0 changed to 1, and a statement to indicate that negative numbers represent Before Christian Era (BC/BE) dates. I would have loved to be able to deal with non-Gregorian calendars (e.g. Jewish, Arabic, Chinese, Japanese, Julian, ....) but don't expect everything to be in place at this stage.

The one area I still expect we are going to have problems in using datatype for electronic commerce is measurements. For example, how can I check that 100cm and 1m are exactly equivalent, but 1yd is not. But again I do not expect you to have addressed these problems at this state. (Schema2 will be along within a few years!)

Nevertheless you have done an impressive job and are to be highly commended.

Martin Bryan
Technical Manager, The Diffuse Project

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Received on Sunday, 14 May 2000 10:52:41 UTC

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