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Subject: RE: URGENT: Adding a Restricted datatype
Hello Lisa,
I suggest that we follow for interoperability reasons always the ISO 8601 standard, if we're representing any date or time information. The representation DD/MM/YY or MM/YY is not compliant to ISO 8601. The equivalent ISO 8601 representation is "CCYY-MM", which can be represented by the built-in data type "xsd:gYearMonth". Lisa mentioned this in her mail.
The correct definition of "ExpiryDate" is:
<simpleType name="ExpiryDate">
<restriction base="xsd:gYearMonth"/>
</simpleType>
Description: The "ExpiryDate" based on the CCT "Date" in a restricted form. This restriction would be expressed by the built-in data type "g:YearMonth" directly and no attributes (supplementary components) are necessary. Therefore, this data type can be defined as "simpleType".
Kind regards,
Gunther