DDEX Data Dictionary, 2020-07-30

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Intro

ern:PeriodWithoutFlags

A Composite containing details about a Period of Time. Periods are typically describedby at least a StartDate or EndDate (or StartDateTime or EndDateTime) where the StartDate(Time) and EndDate(Time) are included in the Period. Thus a one-day period can be described by using the same date in the StartDate and EndDate. If two subsequent Periods form a continuum (i.e. with no break in-between) there are two ways to express this: (a) if using dates, the EndDate of the first Period must be one day before the StartDate of the second Period; (b) if using date times, the EndDateTime of the first Period must be the same as the StartDateTime of the second Period.

Comments

Explanatory Note: This Composite is named PeriodWithoutFlags to disambiguate it from the basic ddexC:Period Composite.

Component Structure
Components	Name	Description of Element Role	Cardinality	Data Type
	XmlChoice		1
	| XmlSequence		1
	|  | StartDate	A Composite containing details of the Date and Place of an Event that marks the beginning of the Period (in ISO 8601 format: YYYY-MM-DD). The StartDate must be no later than the EndDate if both are provided. StartDate and EndDate are deprecated and StartDateTime/EndDateTime should be used instead. DDEX advises that StartDate and EndDate may be removed at a future date and therefore recommends against using them.	0-1	ern:EventDateWithCurrentTerritory
	|  | EndDate	A Composite containing details of the Date and Place of an Event that marks the end of the Period (in ISO 8601 format: YYYY-MM-DD). The EndDate must not be earlier than the StartDate if both are provided. StartDate and EndDate are deprecated and StartDateTime/EndDateTime should be used instead. DDEX advises that StartDate and EndDate may be removed at a future date and therefore recommends against using them.	0-1	ern:EventDateWithCurrentTerritory
	| XmlSequence		1
	|  | StartDateTime	A Composite containing details of the DateTime and Place of an Event that marks the beginning of the Period (in ISO 8601 format: YYYY-MM-DDThh:mm:ss). The StartDateTime must be no later than the EndDateTime if both are provided.	0-1	ern:EventDateTimeWithoutFlags
	|  | EndDateTime	A Composite containing details of the DateTime and Place of an Event that marks the end of the Period (in ISO 8601 format: YYYY-MM-DDThh:mm:ss). The EndDateTime must not be earlier than the StartDateTime if both are provided.	0-1	ern:EventDateTimeWithoutFlags
Is Member of Composites	Composite Name	Description of Element Role	Cardinality	Label of Element in Composite	Further Reading
	ern:ExternalResourceLink	A Composite containing details about the Period of Time during which the ern:ExternalResourceLink is active. StartDate and EndDate are deprecated and StartDateTime/EndDateTime should be used instead. DDEX advises that StartDate and EndDate may be removed at a future date and therefore recommends against using them.	0-1	ValidityPeriod	Dates exclusive vs. inclusive

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