https://credreg.net/ctdl/termhistory/ceterms/exactDuration/turtle/426fe344-fbe6-4bc1-8277-7d2109a0e64a
type: ChangeSet
subject of change: exactDuration
created date: 2026
created date: -06
created date: -26
change reason: Clarified term meaning and usage.
subject webpage: https://github.com/CredentialEngine/Schema-Development/issues/932
removal: Statement
  subject: exactDuration
  predicate: comment
  object: Exact period of time of an activity or event.
addition: Statement
  subject: exactDuration
  predicate: description
  object: This is intended to indicate overall time span, regardless of what portion of that time is spent actively pursuing the completion of the activity, event, or resource.
addition: Statement
  subject: exactDuration
  predicate: comment
  object: Overall span of time it will take to complete the activity, event, or resource.
addition: Statement
  subject: exactDuration
  predicate: usageNote
  object: If a resource takes 50 hours over a span of 6 months to complete, use this to record 6 months as P6M.

https://credreg.net/ctdl/termhistory/ceterms/exactDuration/turtle/0141a5d7-8776-427b-930c-4794f15a1544
type: ChangeSet
subject of change: exactDuration
created date: 2026
created date: -06
created date: -26
change reason: Updating range to allow the use of weeks.
subject webpage: https://github.com/CredentialEngine/Schema-Development/issues/636
removal: Statement
  subject: exactDuration
  predicate: rangeIncludes
  object: duration
addition: Statement
  subject: exactDuration
  predicate: rangeIncludes
  object: Duration

https://credreg.net/ctdl/termhistory/ceterms/exactDuration/turtle/a4c9ab30-4255-483d-bfff-2e250edf1833
type: ChangeSet
subject of change: exactDuration
created date: 2026
created date: -06
created date: -26
subject webpage: https://github.com/CredentialEngine/vocabularies/issues/450
removal: Statement
  subject: exactDuration
  predicate: comment
  object: The exact amount of time it will take to complete the described activity.
addition: Statement
  subject: exactDuration
  predicate: comment
  object: Exact period of time of an activity or event.

https://credreg.net/ctdl/termhistory/ceterms/exactDuration/turtle/6f9d6e4d-919b-454c-8f95-413de6894f3d
type: ChangeSet
subject of change: exactDuration
created date: 2026
created date: -06
created date: -26
change reason: Correcting range.
subject webpage: https://github.com/CredentialEngine/vocabularies/issues/326
removal: Statement
  subject: exactDuration
  predicate: range
  object: dateTime
addition: Statement
  subject: exactDuration
  predicate: range
  object: duration