class - CI_Date

To support and maintain the recording of temporal elements in the metadata it is important to provide consistency of use. The class CI_Date provides this for all temporal elements in a ISO 19115-1 metadata record.

• Governance - ISO
• Metadata type - administrative
• ICSM Level of Agreement - ⭑⭑⭑

Definition

A reference date and event used to describe it

ISO Associations -

• MD_Metadata.dateInfo
• CI_Citation.date
• MD_MaintenanceInformation.maintenanceDate
• PT_LocaleContainer.date

Recommended Sub-Elements

For class CI_OnlineResource

• date - (type - DateTime) [1..1] Madatory for CI_OnlineResource instances. Must be in ISO 8601 format
• dateType - (codelist - CI_DateTypeCode) [1..1] Madatory for CI_OnlineResource instances. Event used for reference date. Options include:
  • creation - date identifies when the resource was brought into existence
  • publication - date identifies when the resource was issued
  • revision - date identifies when the resource was examined or re-examined and improved or amended
  • expiry - date identifies when resource expires
  • lastUpdate - date identifies when resource was last updated
  • lastRevision - date identifies when resource was last reviewed
  • nextUpdate - date identifies when resource will be next updated
  • unavailable - date identifies when resource became not available or obtainable
  • inForce - date identifies when resource became in force
  • adopted - date identifies when resource was adopted
  • deprecated - date identifies when resource was deprecated
  • superseded - date identifies when resource was superseded or replaced by another resource
  • validityBegins - time at which the data is considered to become valid. Note: There could be quite a delay between creation and validity begins
  • validityExpires - time at which the data is no longer considered to be valid
  • released - the date that the resource shall be released for public access
  • distribution - date identifies when an instance of the resource was distributed

Best Practice Recommendations

Therefore - in order to provide the consistancy needed to avoid confusion for both machines and humans, it is recommended that all dates included in a metadata record implement the class CI_Date and follow the guidance provided by ISO and ICSM.

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UML diagrams

Recommended elements highlighted in yellow

! > FIX ME

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