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[Bug 2821] RQ-122 Define value space for dateTime more precisely (dateTime-values)

From: <bugzilla@wiggum.w3.org>
Date: Sat, 11 Feb 2006 00:30:11 +0000
To: www-xml-schema-comments@w3.org
Message-Id: <E1F7ieR-00032R-KR@wiggum.w3.org>


           Summary: RQ-122 Define value space for dateTime more precisely
           Product: XML Schema
           Version: 1.1 only
          Platform: Other
        OS/Version: All
            Status: NEW
          Keywords: resolved
          Severity: normal
          Priority: P2
         Component: Datatypes: XSD Part 2
        AssignedTo: cmsmcq@w3.org
        ReportedBy: cmsmcq@w3.org
         QAContact: www-xml-schema-comments@w3.org

This issue was originally reported by Dave Peterson.

The definition of the dateTime value space does not reference a part

of ISO 8601 that defines dateTime values, only lexical

representations. The reference should be corrected, and the

recommendation should explain or fix the fuzziness and/or gaps in the

definitions referenced.

Dave P: "In 3.2.7 we assert that "the value space of

dateTime is the space of Conbinations of date and time of day values

as defined in [Clause] 5.4 of ISO 8601".  I notice also that

Clause 5 of 8601 is titled "Representations" and the first

sentence of Clause 5.4 asserts "a time-point can be identified

through a combination of date and time of the day representations

provided for in this International Standard". From this, I

conclude our reference is at best incorrect, since the referenced text

only addresses standardized lexical representations."

"It is clear from our discussions that we do not equate dateTime

values with lexical representations thereof; the mapping is not


See (member-only link)



Dave Peterson (member-only link)


Approved for addition in Chapel Hill:



This may have been solved by accepting Dave Peterson's proposal for

R-120 erratum for R-120 (member-only link)


This item was discussed in the meeting of 2003-09-17


This item was discussed in the meeting of 2004-03-01



Dave Peterson erratum for R-120 (member-only link)



This requirement was discharged by the inclusion of the so-called

'seven-property model' in the first published Working Draft of XML

Schema 1.1.
Received on Saturday, 11 February 2006 00:30:16 UTC

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