ABCD

via David Fichtmüller from ABCD Wiki ( http://abcd.biowikifarm.net/wiki/Internal:ABCD_Corrections#Use_only_the_DateTimeISO_type )

(Improvement    not backward compatible    Status: Suggested)

For all the date related elements which have a simple type (this excludes Date and DateTime) the DateTimeISO type should be used. The only exception would be DateText, as this has to be a String. This would allow for more flexibility, like adding times when useful and not being either forced to by xs:dateTime or restrained from by xs:date. Also both xs:date and xs:dateTime allow for more than 4 digit years. This makes a date like 20012-08-23 valid. In my opinion the disadvantages of potential errors like this outweighs the advantage of being able to point out a specific date 999.997.987 years into the future (yes, only with a 10 or more digit year the validator starts to complain).

Effected Elements:

xs:dateTime

                DateLastEdited

                MeasurementDateTime

                DateCreated

                DateModified

xs:date

                VerificationDate

                CreatedDate

                LoanDate

                LoanReturnDate

                DateIssued

String

                AcquisitionDate

                AccessionDate

                AnnotationDate

                PlantingDate